| 全部完成 到目前为止已经完成（过去发生,影响现在） | 部分完成 表持续（未完成） |
|---|---|
|
She has lived in Beijing for ten years. |
| just, already, before, never, ever, yet… | since, for… |
How long have you been married? 你们结婚多久了?
- For a month. 一个月了。
- Since a month ago. 自从一个月以来
| 全部完成 到目前为止已经完成（过去发生,影响现在） | 部分完成 表持续（未完成） |
|---|---|
|
She has lived in Beijing for ten years. |
| just, already, before, never, ever, yet… | since, for… |