| 释义 |
moving upwards and downwards起伏；上下波动- The boat bobbed up and down on the water.小船在水面颠簸。
in one direction and then in the opposite direction来回；往复- She was pacing up and down in front of her desk.她在办公桌前踱来踱去。
- sometimes good and sometimes bad时好时坏
- My relationship with him was up and down.我跟他的关系忽冷忽热。
- (North American English, informal) if you swear up and down that something is true, you say that it is definitely true绝对地；肯定地；完全地
See also up |