除此之外，伸直后背，把重心前移，可以使你更容易地把球回到对手的后场。
Plus, keeping your back straight and transferring your weight forward will make it easier to get the return deep in your opponent's court.
有人甚至预言 ，新闻英语中修饰语重心前移的现象是当代英语变化的一个趋向。
It is predicted that pre modification is an important trend in the development of Modern English. The data for News English in this pap…
因为男性的脂肪倾向于储存在腰部，更多的脂肪会使他们的重心前移，让他们的腿下沉，造成更多的拖拽。
Since men tend to store a large amount of their fat above the waist, putting on more fat would shift their buoyancy forward, making their legs sink - which increases drag.
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