1 N-COUNT 球 A ball is a round object that is used in games such as tennis, baseball, football, basketball, and cricket. 球
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...a golf ball.
高尔夫球
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...a tennis ball.
网球
SYN sphere, drop, globe, pellet
2 N-COUNT 球状物 A ball is something or an amount of something that has a round shape. 球状物
3 V-ERG （使）成球状（或团块） When you ball something or when it balls, it becomes round. （使）成球状（或团块） [Also VERB PREPOSITION n (not pron)]
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He picked up the sheets of paper, and balled them tightly in his fists. [VERB noun adv./prep.]
他抓起那几张纸，在手里紧紧攥成团。
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His hands balled into fists. [VERB adv./prep.]
他攥起了拳头。
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I picked up the balled socks. [VERB-ed]
我把卷成团的袜子拾掇起来。
Ball up means the same as
ball .
ball up同 ball 4 N-COUNT （脚趾和脚相连或拇指和手相连的）球状部位；脚趾球；拇指球 The ball of your foot or the ball of your thumb is the rounded part where your toes join your foot or where your thumb joins your hand. （脚趾和脚相连或拇指和手相连的）球状部位；脚趾球；拇指球
5 N-COUNT 舞会 A ball is a large formal social event at which people dance. 舞会
6 N-COUNT [usually plural] 睾丸 A man's balls are his testicles. 睾丸 [informal, rude]
8 PHRASE 轮到…采取行动（或作出决断） If you say that the ball is in someone's court, you mean that it is his or her responsibility to take the next action or decision in a situation. 轮到…采取行动（或作出决断）
9 PHRASE 使某事发生；开始某种活动 If you get the ball rolling ,set the ball rolling, or start the ball rolling, you start something happening. 使某事发生；开始某种活动
10 PHRASE [VERB inflects] 玩得很开心；尽情欢乐 If you are having a ball, you are having a very enjoyable time. 玩得很开心；尽情欢乐 [informal]
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Outside the boys were sitting on the ground and, going by the gales of laughter, they were having a ball.
男孩们在户外席地而坐，从阵阵笑声来看，他们玩得很开心。
11 PHRASE [VERB inflects] 同时做数件事情 If you keep several balls in the air, you try to do several different things at once. 同时做数件事情
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The detective has to discover the motive, the means and the opportunity and has to keep these three balls in the air.
那名侦探必须查明动机、手段和时机，而且对这三项的调查必须同步展开。
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...unhappy mothers trying to juggle ten balls in the air.
同时要做无数件事情的可怜的母亲
12 PHRASE 警觉；机警；留心 If someone is on the ball, they are very alert and aware of what is happening. 警觉；机警；留心
13 PHRASE 愿意合作 If someone refuses to play ball, they are unwilling to do what someone wants them to do. 愿意合作 [informal]
SYN cooperate, play the game, show willing, pitch in [informal]
| Word Partnership | Use ball with: |
| VERB. | bounce/catch/hit/kick/throw a ball 1 roll into a ball 2 |
| N. | bowling/golf/rugby/tennis ball, crystal ball, ball field, ball game 1 snow ball 2 |
| PREP. | ball of something 2 |
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