山洪的英文：
mountain torrents

参考例句：

The mountain torrents rushed down with a terrifying force.
山洪来势凶猛。

Many embankments were done in by the mountain torrents
许多堤坝被山洪摧毁。

mountain是什么意思：
n. 山；山脉；大量

a chain of mountains/a mountain chain
连绵的山[山脉]

If the mountain will not come to Mahomet, Mahomet must go to the mountain.
如果山不走向穆罕默德，穆罕默德就必须自己走向山。

Snow covered the mountain. = The mountain was covered with snow.
白雪漫山

There's a grand view of the mountains.
这儿可以看到群山的壮丽景象。

carry a road into the mountains
使路延伸至山地

torrents是什么意思：
n. 急流；爆发，迸发；连续不断

A torrent of abuse,insults,questions,etc
滔滔不绝的谩骂、凌辱、问题等.

Torrents of water came rushing down from the mountains.
洪水从山里倾泻下来。

The rain fell in torrents insomuch that we were drenched.
倾盆大雨使我们变成落汤鸡。

The man rounded on him with a torrent of abusive language
那个人突然发起火来,臭骂了他一顿。

Torrents of water rushed down the mountain and submerged the farmland.
山洪暴发,淹没了农田。