| 释义 |
up and down
1. 一上一下；起伏地
jump up and down 上下跳
The float bobbed up and down on the water. 鱼漂在水面上忽浮忽沉。
His wife was nursing a sick baby. He said they were up and down the whole night. 他的妻子在护理一个病孩。他说他们一会儿起来一会儿睡下，折腾了整整一夜。
2. 来来回回，往返地
As it was rather cold, we walked up and down to keep warm. 天气相当冷，我们来回走动以使身子保持暖和。
3. 到处，四面八方
I have looked for him up and down. 我已四处找过他了。
4. 沿…来回；在…的各处
His eyes moved up and down the rows of people, looking for his son's face. 他的眼睛来回扫视一排排的人，寻找儿子的脸。
The pavements up and down the street were blackened with the fires. 街上的路面全都给大火熏黑了。
5. 详尽地，透彻地
He knew the territory up and down. 他对那一片地区了如指掌。
6. 迅速的上下打量，扫视
He gave me the up and down, and I saw that he remembered me. 他朝我上下打量了一下，我看出他还记得我。
7. (状态、情绪等)多变的 |