我感觉非常地孤独，我要证明一些事，但是他们都很忙。
I felt terribly alone. I had something to prove, but they all had something to do.
但他非常想念他的父母亲，他经常感觉孤独ˎ不幸福。
But he missed his parents so much and he often felt lonely and unhappy.
但他非常想念他的父母亲，他经常感觉孤独ˎ不幸福。
But he missed his parents so much and he often felt lonely and unhappy.
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