1) The floods are going down.
洪水正在退去。
2) The flood gradually subsided.
洪水正逐渐退去。
3) The flood is sinking.
洪水正在消退。
4) The flood waters subsided.
洪水退去了。
5) The flood waters gradually subsided.
洪水逐渐退去.
6) The tide was running out.
潮水正在消退。
补充资料：潮水
1.海洋及沿海江河中受潮汐影响而定期涨落的水流。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条