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在一个朋友的空间上看见了左右手定则。
I use my left hand to refuse you.
youdao
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的确可以用“右手定则”来判断,这个我马上会说到。
That is also right-handable which I am going to say in just a few moments.
youdao
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的确可以用“右手定则”来判断,这个我马上会说到。
That is also right-handable which I am going to say in just a few moments.
youdao