- smooth and even; without marked lumps or indentations光滑均匀的; 平整的：
a flat wall
一面光滑的墙
trim the surface of the cake to make it completely flat.
修整蛋糕的表面, 使之完全变平。
- (of land) without hills（陆地）平坦的：
thirty-five acres of flat countryside.
35英亩平坦的乡野。
- (of an expanse of water) calm and without waves（水面）平静的, 波澜不兴的。
- not sloping无坡度的, 平坦的：
the flat roof of a garage.
车库的平屋顶。
- having a broad level surface but little height or depth; shallow低的; 扁的; 浅的：
a flat rectangular box
一个长方形的扁盒子
a flat cap.
一顶扁帽。
- (of shoes) without heels or with very low heels（鞋）平跟的; 低跟的。
- lacking interest or emotion; dull and lifeless缺少兴趣（或感情）的, 平板的; 了无生气的, 沉闷的：
'I'm sorry,' he said, in a flat voice
他说了声“很抱歉,"语气平板
her drawings were flat and unimaginative.
她的画平淡无奇, 缺乏想像。
- (of a person) without energy; dispirited（人）没精打采的; 颓废的, 情绪低落的：
his sense of intoxication wore off until he felt flat and weary.
他的陶醉感渐渐消失, 终于, 他感到没精打采, 疲惫不堪。
- (of a market, prices, etc.) not showing much activity; sluggish（市场、价格等）疲软的, 萧条的：
turnover was flat at £3.2 m
交易疲软, 仅为320万英镑
flat sales in the drinks industry.
饮料业疲软的销售。
- (of a sparkling drink) having lost its effervescence（充气饮料）走了气的, 不起泡的。
- Brit. (of a battery) having exhausted its charge〈英〉（蓄电池）无电的, 电力不足的。
- (of something kept inflated, especially a tyre) having lost some or all of its air, typically because of a puncture（尤指轮胎等膨胀物因刺穿而）漏气的; 没气的：
you've got a flat tyre.
您的轮胎没气了。
- (of a colour) uniform（颜色）无层次的, 无变化的：
the dress was a deadly, flat shade of grey.
那件衣服是单一的灰色, 令人生厌。
- (of a photographic print or negative) lacking contrast（照片, 底片）无深浅对比的, 无明暗的。
- attrib.(of a fee, wage, or price) the same in all cases, not varying with changed conditions or in particular cases（费用、薪资或价格）固定不变的：
a 10p flat fare.
10便士的固定交通费。参见FLAT RATE.
- (of a denial, contradiction, or refusal) completely definite and firm; absolute（否认、反驳或拒绝）断然的; 绝对的, 不容置疑的：
his statement was a flat denial that he had misbehaved.
他的声明断然否认了自己行为不端。
- (of musical sound) below true or normal pitch（乐音）降音的。
- postpositive(of a key) having a flat or flats in the signature（音调）注有降音符的。
- postpositive(of a note) a semitone lower than a specified note（音调）降半音的：
E flat.
降E调。
Flat
of or relating to flat racing（关于）无障碍平地赛马的：the Flat season.
无障碍平地赛马季节。
- in or to a horizontal position水平地：
he was lying flat on his back
他仰面平躺着
she had been knocked flat by the blast.
她当时被冲击波撞倒在地, 直挺挺地躺在那里。
- lying in close juxtaposition, especially against another surface平贴着：
his black curly hair was blown flat across his skull.
他卷曲的黑发被风吹得平贴在头顶上。
- so as to become smooth and even平整地：
I hammered the metal flat.
我用铁锤把那块金属敲平了。
- informal completely; absolutely〈非正式〉彻底地; 断然地：
I'm turning you down flat
我是在断然拒绝你
as submodifier she was going to be flat broke in a couple of days.几天后她就会彻底破产。
- after a phrase expressing a period of time to emphasize how quickly something can be done or has been done仅仅, 只（用在时间后强调动作迅速）：
you can prepare a healthy meal in ten minutes flat.
只需十分钟您便能做好一顿健康餐。
- below the true or normal pitch of musical sound以低音：
it wasn't a question of singing flat, but of simply singing the wrong notes.
问题不是调子唱低了, 而是干脆就唱跑了调。
- in sing. the flat part of something平坦处：
she placed the flat of her hand over her glass.
她用手掌盖住自己的玻璃杯。
- a flat object, in particular扁平物, 尤指：
- （常作flats）an upright section of stage scenery mounted on a movable frame（安装在活动框架上的）景片, 背景屏。
- informal a flat tyre〈非正式〉漏气轮胎。
- N. Amer. a shallow container in which seedlings are grown and sold〈北美〉浅箱, 浅苗床。
- （常作flats）chiefly US a shoe with a very low heel or no heel〈主美〉低跟鞋; 平跟鞋。
- a railway wagon with a flat floor and no sides or roof; a flatcar平板列车; 敞车; 平台货车。
- （一般作flats）an area of low level ground, especially near water（尤指近水）低地; 浅滩, 沙洲：
the shingle flats of the lake.
湖畔的鹅卵石浅滩。参见MUDFLAT.
the Flat
Brit. flat racing〈英〉无障碍平地赛马。
- a musical note lowered a semitone below natural pitch降半音。
- the sign (♭) indicating this降半音的音符。
- usu. as adj. flatted Music, N. Amer. lower (a note) by a semitone【乐】〈北美〉把（音调）降半音：
'blue' harmony emphasizing the flatted third and seventh.
强调降半音C调和G调的“蓝调”和声。
- archaic make flat; flatten〈古〉使平整; 使单调：
flat the loaves down.
把烤肉块放平整。
fall flat
- fail completely to produce the intended or expected effect完全失败, 达不到预期效果：
his jokes fell flat.
他的笑话都没能引人发笑。
fall flat on one's face
- fall over forwards向前跌倒。
- figurative fail in an embarrassingly obvious way〈喻〉脸面丧尽：
the president could fall flat on his face if the economy doesn't start improving soon.
如果经济不能很快开始好转的话, 总统就可能丧尽脸面。
(as) flat as a pancake
- 见PANCAKE.
flat out
- as fast or as hard as possible尽可能快; 尽最大努力, 竭尽全力：
the whole team is working flat out to satisfy demand
整个团队正竭尽全力来满足需求
as adj. flat-out the album lacks the flat-out urgency of its predecessor.这张专辑不像上一张那样急于出版。
- informal, chiefly N. Amer. without hesitation or reservation; unequivocally〈非正式, 主北美〉毅然地, 果断地; 毫无保留地; 毫不含糊地：
in those early days I'd just flat out vote against foreign aid
在最初的那些日子, 我只能毫不含糊地投票反对外来援助
as adj. flat-out flat-out perjury.不折不扣的伪证。
- lying completely stretched out, especially asleep or exhausted（尤指熟睡或疲惫时）四肢摊开：
she was lying flat out on her pink bath towel.
她舒展全身, 躺在粉红色的浴巾上。
on the flat
- on level ground as opposed to uphill在平地上：
the car wouldn't go uphill or overtake on the flat.
这辆车既不会爬坡上坎, 也不会平地超车。
on the Flat
(of a horse race) on an open course as opposed to one with jumps（赛马）在无障碍平地上的。
that's flat
- informal used to indicate that one has reached a decision and will not be persuaded to change one's mind〈非正式〉绝对如此（用来表示作了决定而且不会改弦更张）：
he won't go into a home and that's flat.
他不愿成家, 绝对如此。
flatness
nounflattish
adjective- chiefly Brit. a set of rooms for living in, typically on one floor of a large building and including a kitchen and bathroom〈主英〉（带有厨房和浴室的）公寓, 单元房：
a block of flats.
一幢公寓楼。
flatted, flatting
no obj., with adverbial of place Austral./NZ live in or share a flat〈澳/新西兰〉住公寓; 与人合住一套公寓：my sister Zoë flats in Auckland.
我姐姐佐伊住在奥克兰的一套公寓里。
go flatting
- Austral./NZ leave one's family home to live in a flat〈澳/新西兰〉离家租公寓住：
in my third year I left home and went flatting with David.
三年级的时候我离开家, 和大卫合租了一套公寓。