2019学年度人教版选修七Unit3Under the sea Period 2 language points--Word study 课件(41张)
2019学年度人教版选修七Unit3Under the sea Period 2 language points--Word study 课件(41张)第3页

⑵ We witnessed the break-up of the former Soviet Union. (词性 ____; 意义 ____________ ) ⑶ Police are appealing to any driver who may have witnessed the accident. (词性 ____; 意义 ______________ )

vt.

亲身经历

vt.

目击;亲身看见