险滩的英文：
dangerous shoal
The motorboat cut across swift currents and skirted dangerous reefs
汽艇穿过激流,绕过险滩。
adj. 有危险的，引起危险的，不安全的
to court danger
招致危险
Be ware of danger!
当心危险！
Danger steadies some people.
有的人在危险时候反而坚定。
Dumb dogs are dangerous.
不叫的狗最危险。
Dumb dogs are dangerous
不叫的狗咬人
n. 浅滩；鱼群；大量
v. （使）变浅；驶入
adj. 浅的
The lake is shoaling.
这个湖变得越来越浅了。
A shoal of fish will do this.
鱼群也会反射声音的。
Where's the shoal water?
浅水区在哪？
You will see the shoal reef soon.
很快你就能看到浅滩礁了。
Among them swam shoals of fish.
鱼群在他们中间游过。