红颜薄命的英文：
A beautiful girl has (often) an unfortunate life.

参考例句：

With continual groaning, she bemoaned her fate.
她不停地呻吟着，哀叹红颜薄命。

Over the greatest beauty hangs the greatest woe.
最美丽的女人遭受的灾难最大(红颜薄命)。

beautiful是什么意思：
adj. 美丽的；完美的；优雅的
n. 美
int. 太好了

And of course, “beauty is in the eye of the beholder.”
当然，我们每个人的审美观都有所不同。

A beautiful view greeted us.
美丽的景色呈现在我们面前。

The beauty of Dunhuang is unique in the world.
敦煌的美在世界上是独一无二的。

girl是什么意思：
n. 女孩，姑娘；女儿；女朋友

Cruise for (girls)
猎艳

Your girl will soon have a baby girl.
你老婆很快就要生一个小孩子了。

The girl is a reflection of her mother.
那女孩长得和她母亲一模一样。

often是什么意思：
adv. 时常，常常；往往，通常

They often gossiped.
They often gossiped.

Often the good suffer, and often the wicked prosper.
好人总是受气遭殃，坏人往往青云直上。

She often keeps a diary.
她常记日记。