一项新研究发现，笑声能鼓励人们变得外向起来，这就是交朋友的秘诀。
Laughter encourages people to open up and this is the secret to how to make friends, a new study finds.
她的帮助和鼓励对他的心理是如此地有益，以致他很快就适应了自己的残疾，再次变得外向起来。
Her assistance and encouragement were so beneficial to his psychology that he adapted to his disability soon and became outgoing again.
可是一次偶然的机遇，让我得到了锻炼，让我变得开朗，外向起来。
An accidental opportunity, however, let me get exercise, let me become a bright and cheerful disposition, outgoing.
可是一次偶然的机遇，让我得到了锻炼，让我变得开朗，外向起来。
An accidental opportunity, however, let me get exercise, let me become a bright and cheerful disposition, outgoing.
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