He has stayed here for 3 hours 与 He has stayed here since 3 hours ago.
题目
He has stayed here for 3 hours 与 He has stayed here since 3 hours ago.
这两句话的意思一样吗?
答案
第一句:他在这儿呆了三个小时(表示一个时间段,这段时间就是确定的三个小时,现在可能已经不在这儿了)
第二句; 他从三小时前就在这儿了 (也表示呆了三个小时,但现在还在这儿,这个动作还将延续) 这样说理解么?
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