又一轮新的游泳季节即将到来，在遇到问题之前，该是我们加强肩膀和背部肌肉的时候了。

With a new swim season about to begin, it's time to start strengthening your shoulders and back muscles BEFORE you have a problem.

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此外，橡胶加强层安排靠近胎面肩膀。

Furthermore, a rubber reinforcing layer is arranged near to the tread shoulder.

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