沦陷的英文：
(territory) fall to enemy occupation

参考例句：

Rome has fallen!
罗马已经沦陷了!

The troop made good their retreat from the occupied city.
部队从沦陷的城市安全撤出。

After the fall of France, Britain was really up against it.
法国沦陷以后，英国的处境十分危险。

During the occupation,we had to live in total submission to the invader.
在沦陷时期，我们得听凭侵略者的摆布。

After a much more painful siege, lasting three months, malaga fell too
经过三个月更艰苦的围攻后，马拉加也遭沦陷。

territory是什么意思：
n. 领土；地区；范围；领域

This is a dependent territory.
这是片属地。

Ty. [territory]
领土，（推销员的）推销区域［

territorial behavior; strongly territorial birds.
地盘性举止；强势的地盘性鸟类。

fall是什么意思：
v. 落下；倒塌；摔倒；下降；减弱；阵亡
n. 摔倒；下降；秋天；垮台；陷落；瀑布
adj. 秋天的

Sleet is falling.
天上下起了冰雹。

fall into disfavour
失宠失众望

We observed the barometer fall. [The barometer was observed to fall.]
我们看见晴雨表下降。

enemy是什么意思：
n. 敌人，仇人；敌军；敌舰；敌国；敌机；大敌；大害
adj. 敌人的，敌方的

charge the enemy
向敌人冲去

The enemy yielded.
敌人投降了。

They surprised the enemy.
他们奇袭了敌人。