当大象沿着河床走的时候(它不会游泳)，它的鼻尖举在水面上。
When an elephant walks along the bottom of a river (it can't swim), the tip of the trunk is held above the water.
对于游泳来说，最好的一点就是它不会给关节带来压力。
The best thing about swimming is that there is no pressure on your joints.
对于游泳来说，最好的一点就是它不会给关节带来压力。
The best thing about swimming is that there is no pressure on your joints.
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