MEANING/意义
白费
EXAMPLES/列句
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瞎子点灯--白费蜡
a blind person lights a lamp--to waste something -
我们的努力全白费了,没有任何结果。
Our efforts were all wasted,and there was not any result.
COMBINATIONS/组合
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白费口舌
to waste one's breath,to waste (one's)  words,to speak to the wind