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1·The pillow uses a kind of LED material below the surface.

该枕头的表面下使用了一种 LED 材料。

2·He dived below the surface of the water.

他潜入了水中。《牛津词典》

3·A crocodile was lurking just below the surface.

有条鳄鱼就潜伏在水面下。《牛津词典》

4·Rage bubbled just below the surface of his mind.

怒火在他心中燃烧，随时可能迸发。《牛津词典》

5·They can dive far below the surface.

他们可以潜到水面以下深处。

6·Fishes can dive far below the surface with special tools.

鱼可以利用特殊工具潜入水下很深处。

7·Typically, though, the water table may be tens or hundreds of meters below the surface.

不过一般来讲，地下水位可能会位于地表以下数十或数百米。

8·Wetlands have a big effect on groundwater, the amount of water below the surface of the land.

湿地对地下水，即地表以下的水量影响很大。

9·In the laboratory, when the seal dives below the surface of the water and stops breathing, its heart beats more slowly, requiring less oxygen, and its arteries become constricted.

在实验室里，当海豹潜入到水面以下并停止呼吸时，它的心脏跳动得更慢，需要的氧气更少，动脉也会收缩。

10·Plant the dry bulbs just below the surface.

种植时只消把干鳞茎埋入表土即可。