万丈深渊的英文：
a bottomless chasm; a bottomless abyss

参考例句：

An abyss of 100,000 feet
万丈深渊

One slip on this mountain and you will fall into the abyss.
在这座山上一失足便会跌入万丈深渊。

And then the proud and smirking Poet and Maker falls ten thousand feet ito dubiety
于是傲慢、自满而痴笑的堂堂诗人跌进了怀疑的万丈深渊。

bottomless是什么意思：
a. 无底的;深不可测

A beggar's purse is bottomless
乞丐的钱袋是无底洞

Geffen has a hunger for success that seems bottomless.
格芬的成功欲望似乎永无止境。

But above all they contain a bottomless reserve of cheap labour.
但是主要是这些地方有无穷无尽的廉价劳动力储备。

chasm是什么意思：
n. 深坑，裂口

They failed to bridge the chasm.
他们未能跨越这道鸿沟。

It must be filled up this terrible chasm.
这可怕的深坑必须填平。

a gorge; a chasm; a canyon; a gulch; a gap; a notch
峡谷

abyss是什么意思：
n. 深渊，无底洞；险恶的境地；极大的差异，鸿沟；地狱；深邃

Send these foul beasts into the abyss!
送这些肮脏的畜生下地狱吧！

Does it not lead to an abyss?
它没有通往地狱吗？

God and man are divided by a fundamental abyss.
上帝与人类之间隔有一条根本性的鸿沟。