抗洪救灾的英文：
fight floods and provide disaster relief

fight是什么意思：
n. 斗志，战斗力，比赛
v. 与…作斗争，坚决反对，（为…而）斗争，努力争取，参加，努力克制

This is a clean fight.
这是一场公平的较量。

If they start fighting, we fight back, fight to win peace.
人家打来了，我们就打，打是为了争取和平。

The fight resulted in a stalemate.
战斗形成对峙局面。

floods是什么意思：
n. 洪水，水灾，大批，大量
v. 淹没，泛滥，大量涌入，挤满，充满，照进，（使）溢流

flood lubrication
溢流式润滑

The land was desolated by floods.
洪水使田野荒芜。

Floods brought destruction to the vally.
洪水给山谷造了大灾害。