自怨自艾一点用处都没有！
Life's too short to sit around moping.
人生很短，不能整天坐在那儿自寻烦闷。
Why waste time and energy moping?
为什么要浪费时间和精力让自己闷闷不乐呢？
The moping owl does to the moon complain.
有只忧郁的猫头鹰对月抱怨。
He's been moping around (the house) all day.
他整天都在(房子)四周瞎转悠。
He's been moping around (the house) all day.
他整天都在(房子)四周瞎转悠。
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