→ madeint:has opened up 06/06 21:36
→ wowhanhow:原來是我會錯意了...orz...感謝回答!~~ 06/06 21:46
其中一段話是
Ehlmann led a study that's opened up the possibility that life existed on
the planet Mars deep in its past
想請問的就是標紅色字的地方
為何要用is opened up呢
不能直接用that opened up嗎= =?
加be動詞的用意是...???
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