If we say when a past event happened (for example, by using time-adverbs), we do not usually use the present perfect.
说过去发生的事件(例如:用过去时间状语),我们通常不用现在完成时。
If we say when a past event happened (for example, by using time-adverbs), we do not usually use the present perfect.
说过去发生的事件(例如:用过去时间状语),我们通常不用现在完成时。
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