高中游记风景作文:I have been sitting 的意思.,时态,,相关句子-举例

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意思是：我已经坐在（那儿）。。。,就是说我从过去的某一时间直到现在一直坐着

时态是：现在完成进行时

例句：比如某人从八点开始上班一直工作到现在(现在仍在工作)：I have been working for five hours.

我已经坐下，
过去进行时
I have been doing my homework....

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