Thank you, Dr. NewVoice.

來源: EnLearner 於 2011-08-20 07:15:58 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

Two unequal stones were dropped to/on the ground at the same time.

Does this mean that the stones were released at the same time?

Or it means that the stones hit the ground at the same time?

Or it means that the stones were released and hit the ground at the same time?

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