flood，洪水，泛濫。
floodwater，洪水。
The recent flooding in the south is
a calamity(災難).
最近南方的洪水是一場災難。
It rained all the time this summer which
made some rivers flood.
今年夏天總是下雨，造成一些河流泛濫。
The riverbed is silted up, so there's no
outlet for the floodwater.
河道淤塞，水無出路。
silt，河裡的淤泥
The river is in flood after the heavy
rain.
大雨過後河水泛濫了。
The water nearly rise to the historical
flood level.
洪水快漲到歷史洪峰點了。
All we can see everywhere is
floodwater.
我們所能看到的到處都是洪水。
When the flood subsided, it left a layer of mud on the ground.
洪水過後，地上淤積了一層泥漿。
subside，下沉，平息。
Flood waters washed away one of the main bridges.
洪水衝垮了一座主要橋梁。
wash away衝垮，衝走。
We have got flood waters under
control.
我們已經控制了泛濫的洪水。
Local officials say the floodwaters
have subsided.
當地官員稱洪水已經退去了。
A few days later the floodwater
subsided and life return to normal
again.
過了幾天，洪水退去，生活又恢復了往日的正常。