这还真是一个让人伤脑筋的问题。
有她在场虽然不太让人伤脑筋，但也够让人费神的了。
Her presence had not so much weight as to task thought, and yet enough to exercise it .
我们这的天气啊变化无常，让人很是伤脑筋呢。
Our this weather Oh is changeable, lets person be to cause enough headache very much.
而如何让机器人动起来，才是让达·芬奇大伤脑筋的。
And how to make robots move, so that Leonardo da Vinci is the big headache.
而如何让机器人动起来，才是让达·芬奇大伤脑筋的。
And how to make robots move, so that Leonardo da Vinci is the big headache.
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