陷落的英文：
slump

参考例句：

Armed capture of a place under siege
被围攻的堡垒陷落.

Some were seedlings when Troy fell, and already giants when Rome was founded
有些树在希腊神话中特洛伊城陷落的时候还是树苗，到罗马建立时已是庞然大物了。

With the loss of Leros all our hopes in the aegean were for the time being ended
勒罗斯岛既已陷落，我们在爱琴海的一切希望暂时也就破灭了。

And now, O Roman Fathers! Send help to our army at once, or every man will be slain, and our city will be taken.
现在，噢，罗马元老们，立刻派兵援助我们的军队吧，否则，就要全军覆没，我们的城市就要陷落了。

slump是什么意思：
v. 下跌；衰落；下降；（使）倒下
n. 骤降，猛跌，锐减；萧条期；衰退

She slumped into a chair.
她轰然倒在了椅子上。

Gill was dwelling on the consequences of the slump.
吉尔一直在考虑这衰退的后果。

Net profits slumped by 41%.
净利润暴跌了41%。

The slump in global manufacturing seems to be easing.
全球制造业的衰退似乎也正在减缓。

If the slump continues, more men will be stood off.
如果经济萧条持续下去，将有更多的人被解雇。