底部滑移，也通常被称为滑动，大致指的是冰川在基岩上的滑动，实际上是在基岩上部的一层薄薄的水上的滑动。

Basal slip or sliding as it's often called, basically refers to the slipping or sliding of a glacier across bedrock, actually across a thin layer of water on top of the bedrock.

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威尼斯是建于水上的城市。

Venice is a city built on water.

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是谁发现了冰激凌可浮于汽水上的事实？

Whoever figured out that a scoop of ice cream was meant to float in a glass of fizzy soda did his fellow man a good turn.

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On the rickety bridge you're swaying in the breeze hundreds of feet above the water, the bridge seems unstable.

在摇摇摆摆的桥上面,你在几百尺高的水上悬着，在微风中荡来荡去，桥似乎也不稳。

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There's a lot of, you know, surfing, water sports, skating, stuff like that that I like to do.

可以经常，你知道，可以冲浪、水上运动、滑冰，我喜欢做的那些事。

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And if you had a motor here that was causing a paddle to move up and down you could cause waves to form at one end of the tank and move from left to right.

如果在水槽里放个发动器,来让水上下起伏,波浪形成于,水槽的一端,然后从左向右扩散。

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