They have no use for fickle supporters.

他们能容忍反覆无常的拥护者。

The television world was a notoriously fickle one.

电视圈是出了名的变化无常。

It's the third time that he changed his mind; he's so fickle!

"他改变主意已经是第三回了,他这人太反复无常了!"

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