If you're unsure whether someone is going to work out, here's a non-emotional way to evaluate the situation.
如果你不确定某人是否胜任工作,就看看这个不带感情的评估方法。
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To test this theory, a team led by Shani Gelstein, at the Weizmann Institute of Science in Israel, decided to test male reaction to the smell of emotional and non-emotional tears.