围岩失稳的英文：
lose stability of surrounding rock

lose是什么意思：
v. 遗失；输掉；浪费；被...夺去；不明白；逃避；错过

to lose; to miss; to disappear; to mislay
遗失

A tale never loses in the telling.
故事总是被人们说得添枝加叶的。

Merry is he that has nought to lose
人无所失,不亦乐乎

stability是什么意思：
n. 稳定（性）；坚定

The chief issue of stabilizing the economy is how to stabilize prices.
稳定经济的首要问题是稳定物价。

A stabilized economy is a determining factor in stabilizing the political situation.
稳定的经济对稳定政局有决定性的作用。

It is possible to overstate the benefits of stabilization.
稳定性带来的好处有可能被夸大。

surrounding是什么意思：
adj. 周围的，附近的
n. 环境，周围的事物

The crowd surrounded the victor.
人群挤在胜利者周围。

To surround or encircle with or as if with a belt or girdle.
用(好象用)带子或腰带围绕或环绕

The house is surrounded by stones walls.
这房子四面围着石墙。