| 释义 |
上下上下[shàng xià]1.■ （职务、辈分上的高低） high and low; old and young:举国上下the whole nation;全家上上下下都很高兴。All members of the family, old and young, are very pleased.2.■ （从上到下） from top to bottom; up and down:这个水塔上下有50米。The water tower is fifty metres high.3.■ （从高到低或从低到高） go up and down:摩天楼里有电梯，上下很方便。With an elevator in the skyscraper, we can easily go up and down.4.■ （程度高低） relative superiority or inferiority:不相上下equally matched; about the same;难分上下hard to tell which is better5.■ （用在数量词后面） about; or so; or thereabouts:30岁上下about thirty years old; thirty or so
常用词组1.■上下配穴 {中医} coordination of the acupoints of the upper with those of the lower, superior-inferior point association;2.■上下钳口 bit (pl. bits);3.■上下升降 oscillation |