Four out of five times, it's from these rip currents, also called riptides.

这些事故五分之四是由离岸流，也称激流造成的。

Generally, riptides are only about 25 m (80 ft) in width.

一般来说，离岸流只有25米(80英尺)宽。

If you don't, you might get caught in a riptide.

如果不这样做的话，你可能就会被卷入激流中了。

You might even spot the riptide before you go into the water.

你甚至可以在下水前就分辨出离岸流是否即将发生。

If you find yourself in a riptide, don't panic.

假如你发现自己被卷入激潮时，别惊慌。

In some cases, these people were good swimmers. So how did it happen? Riptide!

而这些溺水的人中有些是很会游泳的。那么这究竟是怎么发生的呢？是激潮在作怪！

This could indicate that a riptide is churning up sand, sediment and seaweed.

这种现象表明激流可能正在搅动着沙子、沉积物和海藻。

Riptide is a strong underwater current. It moves quickly away from shore and out to sea.

激潮是海面下一种强大的暗流，从海岸迅速地流向大海。

This is WHAT IF and here is what will happen if you were caught in a riptide.

请收看本期“假如有如果”节目，接下来我会为各位介绍，如果遇到离岸流，都会发生什么事情。

But now that you know the best method to escape a riptide, you'll be less likely to struggle against the rip current.

不过，既然你已经知道了逃离离岸流的最佳方法，你不太可能还会在激流里挣扎了。

Behind them, he heard a hissing—like the wind, like a riptide where there was no water.

在他们身后，他听到嘶嘶声——像风一样，像没有水的激流。

They all turn to look at him, and Alex feels a wave of something so much bigger than himself sweep over him, like when he was a child standing bowlegged in the Gulf of Mexico, riptide sucking at his feet.

他们都转头看着他， 亚历克斯感到一股比他自己大得多的波浪席卷了他，就像他还是个孩子时， 罗圈腿站在墨西哥湾，激流吮吸着他的脚。