前言：目的：探讨新的旋后肌综合征的诊断方法。

Objective: to investigate special diagnostic test for supinator syndromes.

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两三周后我们会讲到空间上的旋度？

We are going to see curl in space in two or three weeks. Yes?

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后旋球容易接。

This backspin makes the ball easier to catch.

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后旋球容易接。

This backspin makes the ball easier to catch.

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