fickle
[ˈfɪkəl]
adj.
（爱情、友谊等）易变的，无常的;
薄情的;
浮躁的;
例句:
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The fickle, inconstant, volatile temper of the people.
来自H. P. Brougham
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Orta's weather can be fickle.
奥尔塔的天气变幻莫测。
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The weather here is notoriously fickle.
这里的天气出了名的变化无常。
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Fluctuating prices usually base on a fickle public's demand.
物价的波动往往是由于群众需求的不稳定而引起的.
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It's a fickle corner in the dark.
来自M. O. W. Oliphant
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Other questions were put to 'fickle' him.
来自S. Smiles