If you swim in a river or lake, be sure to investigate what is below the water surface.
如果你在河里或者湖里游泳，一定要弄清楚水面下有什么。
Tom threw a stone into the water and disturbed the smooth surface of the lake.
汤姆将一块石头扔进水中，扰乱了平静的湖面。
He put his OARS in the water and disturbed the smooth surface of the lake.
他把桨放入水中，搅乱了平静的湖面。
The lake water level reduces, the water surface reduces even dry.
湖泊水位降低，水面缩小甚至干涸。
The lake water level reduces, the water surface reduces even dry.
湖泊水位降低，水面缩小甚至干涸。
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