The river has become very dirty和the river has been very dirty 哪个对

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Theriverhasbecomeverydirty和theriverhasbeenverydirty哪个对Theriverhasbecomeverydirty和theriverhasbeenvery

The river has become very dirty和the river has been very dirty 哪个对
The river has become very dirty和the river has been very dirty 哪个对

The river has become very dirty和the river has been very dirty 哪个对
其实都没错,要看时间