- brush up on复习;
- break up with跟…分手;与…断绝关系;
- beat up and downv.来回奔走;左右奔走;
- be up to胜任，从事于;该由…负责;
- be hard up for缺少某事物，需要某事物;
- bark up the wrong tree把某事物搞错了;捕风捉影;
- come up with想出，提出(计划、想法等) ;设法拿出(所需钱款) ;
- come up to达到;将近;来到近旁;比得上;
- drive up to开往;
- feel up to<非正>感到自己有能力[适于]（做某事）， 感到能胜任（某事）;
- fed up with受够了…;
- give up smoking忌烟;
- get up to赶上;靠近到;达到;从事…;
- gang up onv.联合反对;
- knock up against偶然撞上;偶然遇见;
- lead up to作为…的准备，导致;使话题（渐渐）转向;
- blow up in someone's face突然在某人的脸上爆炸
- pick up the tab替人付账;
- pick up steam渐渐加速;
- sit up for不睡等待某人;
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