“回流”的拼音？

近岸回流的冲力能把游泳的人涌到海里.The pull of the undertow can drag swimmers out to sea.化学物质在系统中不断循环或回流.Chemical constantly circulate or recycle in the system.这种液体就是回流.This liquid is known as the reflux....

“回流”的英语可以翻译为：ack-flow，inverse flow，counter-flow，backwash，circumfluence ...