他们为了获得关注，会无缘无故地哭泣和大喊大叫。
They will cry and shout when it's not necessary just to get attention.
他的情绪容易突变，且会无缘无故地愠怒和哭泣。
He is liable to sudden changes of mood and would sulk and cry for no apparent reason.
他的情绪容易突变，且会无缘无故地愠怒和哭泣。
He is liable to sudden changes of mood and would sulk and cry for no apparent reason.
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