If the water is higher than the bottom of your knees or is moving too quickly for you to wade through, climb on top of your car and wait for help.
如果水漫过了你的膝盖下方或者水流快得让你无法涉水前进，赶紧爬上车顶等待救援。
They would likewise arrive as rapidly as the water is moving, as long as they did not catch at the bottom, and snag.
同样，只要它们没有触底搁浅，它们会跟与海水移动得一样快。
The pressure variation on shallow water bottom caused by a moving ship is of vital importance for safety.
航行船舶在水底引起的压力变化对其自身安全有重要影响。
To keep your ship moving through the water at maximum efficiency, you have to keep scraping the barnacles off its bottom.
在湍急的河流中，要让船只以最快的速度前进，你必须不断刮除积附在船底的障碍物。
To keep your ship moving through the water at maximum efficiency, you have to keep scraping the barnacles off its bottom.
在湍急的河流中，要让船只以最快的速度前进，你必须不断刮除积附在船底的障碍物。
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