英语语法分析

Riptide is a strong underwater current.

激潮是海面下一种强大的暗流。

The sand dropped off steeply, and a riptide was sucking the woman un-der.

沙床边缘非常陡峭，并且激流的吸力将妇人往下拽。

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。