他是个非常内向的人——他从不向人吐露心事。
一项跟踪调查20世纪20年代的小孩的研究显示，那些在学校被老师评价为“非常开朗”的人比其他较内向的同学死得更早。
A study which followed children from the 1920s to old age showed that people who were rated 'highly cheerful' by teachers at school died younger than their more reserved classmates.
这些对于外向的人也许只是小事，但对于性格内向的人，像我，就是一个非常大的挑战。
That maybe just a small case for extrovert, but for introvert, like me, it's really a big challenge.
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