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我叫约翰·贝尔奇，来自麻省理工大学的物理学院。
My name's John Belcher, I'm in the Department of Physics, MIT.
youdao
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贝尔·蒂奇对你的削球和速度变化束手无策。
Q. Berdych was having some problem with your slice and change of speed.
youdao
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贝尔·蒂奇对你的削球和速度变化束手无策。
Q. Berdych was having some problem with your slice and change of speed.
youdao