What hits the ball? Quickly, answer. It's not the racket, it's the racket's face, or strings. Keep this in mind.
什么击打球?快，马上回答。不是球拍， 而是拍面， 或者说球线。记住这点。
Nathan: ah, I said: racket technology and strings have advanced to the 21st Century.
慧慧：有关球拍的技术和球拍的弦都在21世纪有了很大的改观？
Nathan: : ah, I said: racket technology and strings have advanced to the 21st Century.
慧慧：有关球拍的技术和球拍的弦都在21世纪有了很大的改观？
I have broken several strings in my tennis racket, so I strung it with new ones.
我的网球拍的网线断了好几根了，所以我用新的上好了。
I have broken several strings in my tennis racket, so I strung it with new ones.
我的网球拍的网线断了好几根了，所以我用新的上好了。
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