易混淆的单词： Joints

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Stretching makes your muscles and joints more flexible too .

伸展也可以是你的肌肉和关节更加灵活。

Meanwhile , their loosely fitted joints allow each storey to slide horizontally independently of the others .

同时，其松动的安装接头允许每一层在不借助外力的情况下水平滑动。

But it also has some similar joints to humans .

不过，它也有一些类似人类的关节。

Wear comfortable shoes , which lowers stress on joints .

尽量穿舒服的鞋子，它可以减轻关节的压力。

It cushions our joints and soft tissues .

它衬垫（润滑）了我们的关节和软组织。