One of the first water clocks was a basin with a small hole near the bottom through which the water dripped out.

最早的水钟之一是一个在底部附近有小洞的水盆，水从这个洞里滴出来。

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This young man had all the inclination to be a profligate of the first water.

这个青年完全有可能成为十足的浪子。

《新英汉大辞典》

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Professor Pace has a warning for people who let water hit their face when they first turn on the shower.

VOA: special.2009.10.13

And Celsius first used the boiling point of water, and called that 100 degrees Celsius, and the freezing point of water and called that zero degrees Celsius.

定义一些参考点，例如摄氏温标定义水的沸点，是100摄氏度,冰点是0摄氏度。

麻省理工公开课 - 热力学与动力学课程节选

In Helen's first experience with the ocean, she was caught by a wave and pulled under the water.

VOA: special.2009.11.08

Asadi's boat glides through the gap in the dike that brought the first water back into the marshes.

NPR: Iraq's Marshlands Face A Second Death By Drought

An eyewitness working on the west side of Manhattan said the belly of the plane touched the water first.

CNN: Pilot praised for 'masterful' landing

The United Nations General Assembly responded by designating 22 March 1993 as the first World Water Day.

UNESCO: World Water Assessment Programme (WWAP)