牢笼的英文：
cage; trap

参考例句：

Zoos in earlier days were only small and narrow prison cages, animals inside could almost not move around.
早期的动物园仅仅是窄小的牢笼，动物在里面几乎不能动弹。

Now that he was disabled,his house had become a prison to him.
因为他残废了,他的房子就成了他的牢笼.

The son of the village head ahzhi tried to force ahshima to marry him, and the girl was even put into prison.
头人的儿子软硬兼施地阿支追求阿诗玛并将她关进牢笼逼婚

What a fool am I, thus to lie in a stinking dungeon, when I may as well walk at liberty!
我多么愚蠢啊，本来可以走向自由，而我却这样躲在恶臭的牢笼里！

cage是什么意思：
n. 笼子；牢房
v. 把…关进笼子；把…囚禁起来

Nightingales will not sing in a cage
夜莺困笼不唱歌

The dogs are caged at night.
晚上狗被关进笼里。

The lion in the cage lashed its tail.
槛中的狮子猛烈地摆动尾巴。

I hate to see birds in cages.
我不愿意看到鸟被关在笼子里。

Wild animals should not be caged in the zoo.
野生动物不应囚禁在动物园中。

trap是什么意思：
n. 陷阱；圈套；夹子
v. 诱捕；设陷阱；困住；使陷入困境

ball float trap
浮球式阻汽器

The pain was caused by a trapped nerve.
这疼痛是由于神经受抑制引起的。

The rat was caught in a trap.
那只老鼠被捕鼠器捉住了。

Be ware of falling into their trap.
当心中了他们的计。

She was arrayed with splendid trappings.
她穿着华丽的礼服。