could

動詞

1. 1

   能、可以、會can 的過去式

   When I was younger, I could run ten kilometers without stopping.

   我年輕的時候可以一口氣跑十公里。

2. 2

   可能、也許

   Your keys could be under the sofa cushions.

   你的鑰匙可能在沙發墊子底下。

3. 3

   可以、能否用於客氣的請求

   Could you pass me the salt, please?

   可以請你把鹽遞給我嗎。

4. 4

   可以、不妨用於提出建議

   We could take the train instead of driving there.

   我們可以搭火車去，不用開車。

5. 5

   可以、得以表示許可

   The teacher said we could leave once the test was over.

   老師說考完試就可以離開。