- in sing. the solid surface of the earth大地, 地面：
he lay on the ground.
他躺在地上。
- mass noun a limited or defined extent of the earth's surface; land（有界限的）地皮; 土地：
an adjoining area of ground had been purchased.
邻近一片地被人买下了。
- mass noun land of a specified kind（特定种类的）地, 土地：
my feet squelched over marshy ground.
我的脚踩在泥泞的沼泽地上吱吱作响。
- Brit. the floor of a room〈英〉（房间的）地面：
the device fell to the ground, where it exploded, blowing a hole in the floor.
那个装置掉在地上, 发生了爆炸, 把地板炸出一个洞。
- （亦作grounds）an area of land or sea used for a specified purpose（作为特定用途的）场地, 场：
shore dumping can pollute fishing grounds and beaches.
在海边倾倒废物会污染渔场和海滩。
grounds
an area of enclosed land surrounding a large house or other building（建筑物周围的）场地, 庭园：the house stands in seven acres of grounds.
房子伫立在七英亩的庭园之中。
- an area of land, often with associated buildings, used for a particular sport（有附设房屋的）运动场地：
a football ground
足球场
Liverpool's new ground is nearing completion.
利物浦的新运动场快完工了。
- mass noun an area of knowledge or subject of discussion or thought（知识、讨论或思考的）范围, 领域：
third-year courses typically cover less ground and go into more depth
三年级的课程通常涉及的领域较少但更深入
count noun he shifted the argument on to theoretical grounds of his own choosing.他将论点转移到自己选择的理论领域。
grounds
factors forming a basis for action or the justification for a belief理由, 根据：there are some grounds for optimism
有一些乐观的理由
they called for a retrial on the grounds of the new evidence.
他们以有新证据为由提请再审。
- chiefly Art a prepared surface to which paint is applied【主艺术】底子, 底色。
- a substance used to prepare a surface for painting绘画打底用材料。
- (in embroidery or ceramics) a plain surface to which decoration is applied（刺绣或制陶用语）底坯。
- a piece of wood fixed to a wall as a base for boards, plaster, or joinery（用以在墙上安装木板、细木工制品或上泥灰的）底板, 底衬。
grounds
solid particles, especially of coffee, which form a residue; sediment（尤指咖啡的）渣滓; 沉淀物。
- N. Amer. electrical connection to the earth〈北美〉接地; 接地装置, 地线。见EARTH（义项3）。
- Music short for GROUND BASS.【乐】GROUND BASS的简称。
- （常作be grounded）prohibit or prevent (a pilot or an aircraft) from flying禁止（飞行员或飞机）飞行; 使停飞：
bitter wind blew from the north-east and the bombers were grounded.
寒风从东北方刮来, 轰炸机无法起飞。
- informal, chiefly N. Amer. (of a parent) refuse to allow (a child) to go out socially as a punishment〈非正式, 主北美〉（父母）罚（孩子）不准外出社交。
- run (a ship) aground使（船）搁浅：
rather than be blown up, Muller grounded his ship on a coral reef and surrendered.
马勒没有被炸死, 而是将船在一座珊瑚礁上搁浅后投降了。
- no obj.(of a ship) go aground（船）搁浅：
the larger ships grounded on the river bed at low tide.
大船退潮时搁浅在河床上。
- （一般作be grounded in）give (something abstract) a firm theoretical or practical basis使（抽象事物）建立在牢固的理论（或实践）基础上：
the study of history must be grounded in a thorough knowledge of the past.
历史研究必须建立在对过去全面了解的基础之上。
- instruct (someone) thoroughly in a subject（在某学科上）给…以扎实的基础教育：
Eva's governess grounded her in Latin, Greek, and Italian.
伊娃的家庭教师为她的拉丁语、希腊语和意大利语学习打下了牢固的基础。
- as adj. grounded well balanced and sensible沉稳的; 明智的：
for someone so young, Chris is extremely grounded.
就这么年轻的人来说, 克里斯是特别明智的。
- place or lay (something) on the ground or touch the ground with (something)把…放在地上; 以…触地：
he was penalized two strokes for grounding his club in a bunker.
由于在一障碍处球杆触地, 他被罚两杆。
- N. Amer. connect (an electrical device) with the ground〈北美〉把（电器）接地。
- (of an animal) living on or in the ground（动物）（生活于）地面（或地下）的。
- as modifier(of a fish) bottom-dwelling（鱼类）生活于水底的。
- as modifier(of a plant) low-growing, especially in relation to similar plants（植物）（尤指相对于同类植物）低矮的。
- (in aviation) of or relating to the ground rather than the air (with particular reference to the maintenance and servicing of an aircraft on the ground)（航空用语）地面的, 地勤的（尤指飞机在地面的维修保养）：
ground crew.
地勤人员。
be thick（或thin）on the ground
- existing (or not existing) in large numbers or amounts为数众多（或为数不多）：
new textbooks on particle physics are thin on the ground.
粒子物理学的新教材为数不多。
break ground
- do preparatory digging or other work prior to building or planting something翻土, 犁地; 破土, 动工。
- another term for break new ground below.同后面break new ground.
break new（或fresh）ground
- do something innovative which is considered an advance or positive benefit开辟新天地, 创新。
cut the ground from under someone's feet
- do something which leaves someone without a reason or justification for their actions or opinions使（某人）的行为无正当理由, 使（某人）的观点无据可依。
from the ground up
- informal completely or complete〈非正式〉完全（或彻底）地; 完全（或彻底）的：
they needed a rethink of their doctrine from the ground up.
他们需要彻底地重新考虑他们的学说。
gain ground
- become more popular or accepted越来越得人心, 越来越为人们所接受：
new moral attitudes are gaining ground.
新的道德观越来越为人们所接受。
gain ground on
- get closer to someone or something one is pursuing or with whom one is competing逼近, 追上（追赶对象, 竞争对手）：
the dollar gained ground on all other major currencies.
美元对所有其他主要货币的汇率有所上升。
get in on the ground floor
- informal become part of an enterprise in its early stages〈非正式〉在企业的草创阶段加入。
get off the ground（或get something off the ground）
- start or cause to start happening or functioning successfully（使）顺利开始; （使）起作用：
he doesn't appreciate the steps he must take to get the negotiations off the ground.
他不喜欢自己为使谈判得以开始而不得不采取的那些步骤。
give（或lose）ground
- retreat or lose one's advantage during a conflict or competition让步; 退却; 失去优势：
he refused to give ground on this issue.
他拒绝在这一问题上让步。
go to ground
- (of a fox or other animal) enter its earth or burrow（狐狸等）钻入地穴。
- figurative (of a person) hide or become inaccessible, especially for a long time〈喻〉（尤指长时间地）潜伏, 躲藏; 退隐：
he had gone to ground following the presidential coup.
推翻总统的政变后他便退隐了。
hold（或stand）one's ground
- not retreat or lose one's advantage during a conflict or competition不让步; 不退却; 保持优势：
you will be able to hold your ground and resist the enemy's attack.
你将能够坚守阵地并抵御敌人的进攻。
make up ground
- get closer to someone ahead in a race or competition追近, 赶上。
on the ground
- in a place where real, practical work is done在现场, 在实地：
the troops on the ground are cynical.
战地的部队只顾自身的安危。
on one's own ground
- in one's own territory or concerning one's own range of knowledge or experience在自己熟悉的领域内, 在自己的经验范围内：
I feel reasonably relaxed if I'm interviewed on my own ground.
如果访谈内容在我自己熟悉的领域内, 我就会相当放松。
prepare the ground
- make it easier for something to occur or be developed（为某事的发生或发展）做好准备, 铺平道路：
these measures prepared the ground for further reform.
这些措施为进一步改革铺平了道路。
run someone/thing to ground
- 见RUN.
work（或run）oneself into the ground
- exhaust oneself by working or running very hard工作（或跑）得精疲力竭。
ground out
- Baseball (of a batter) be put out because of hitting a ground ball to a fielder who throws it to first base before the batter touches that base【棒球】（击球员）击出内场地滚球被杀出局：
he grounded out to shortstop.
他击出内场地滚球后被封杀至游击手位置。
- reduced to fine particles by crushing or mincing磨碎的; 磨细的：
ground cumin.
孜然粉。
- shaped, roughened, or polished by grinding打磨成的; 磨毛的; 磨光的：
the thick opaque ground perimeter of the lenses.
镜片周围厚厚的不透明的磨边。
ground down
- exhausted or worn down筋疲力尽的, 疲惫不堪的; 用旧的。