| 释义 |
used to ： would — 844
1a. 表达过去的习惯活动，这两个助动词几乎可以通用。
例如：
When we were children we used to ／ would go skating every winter. 我们小时候，每到冬天就去滑冰。
We used to ／ would swim every day when we were young. 我们年轻的时候，每天游泳。
1b. 但也不是说，两者一无区别，比如说，表达存在和状况，要用前者（参见词目 843 ）；如用于动态动词，要用后者。
例如：
There used to be some trees, didn't there? 过去这儿有些树，不是吗？
It used to be thought that the earth was flat. 过去一向认为，地球是平面的。
We would run down to the lake and jump in to swim. 我们常常一跑到湖边就跳进去游泳。
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