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“平白无故”，汉语成语，指无缘无故、没有理由或原因。可以翻译为“for no reason，without reason or cause或for no apparent reason”等。
例句：
平白无故挨了顿骂
Get a scolding for no reason at all
她不可能平白无故离开他。It was impossible that she left him for no reason at all.
Editor: Jade
来源：c