完蛋的英文：
fall from prestige
be finished
done for

参考例句：

You're doomed!
你快完蛋啦!

He is lost without resource.
他彻底完蛋[失败]了。

A man is not finished when he is defeated. He is finished when he quits.
一个人失败了并不会完蛋，一但放弃就完蛋了。

By doing so he has signed his own doom.
他这样做就是注定了自己必然完蛋的命运。

New England was accustomed to didacticism in its literature, and unmitigated didacticism blights the novel
新英格兰习惯于在文学里说教，可是一味说教，小说就要完蛋。

If she'll let up on some of the roughest things, I'll smoke private and cuss private, and crowd through or bust.
在些难事上，她要是能宽容一些，我就可以背地里抽烟、诅咒。 要么挺过去，要么完蛋拉倒。

He was ruined past hope now; his destruction would be immediate and sure, and he would be an outcast and friendless
现在他是一败涂地，毫无希望了;他已经注定了马上就要完蛋，成为一个无家可归，无亲无友的可怜虫。

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。

prestige是什么意思：
n. 声望，威望；威信

He is an author of international prestige.
他是有国际声望的作家。

"Prestige, no smoking"
高雅场所,请勿吸烟

The old universities of Oxford and Cambridge still have a lot of prestige.
历史悠久的牛津大学和剑桥大学仍然享有很高的声望。

finished是什么意思：
adj. 精巧的；完蛋的；完成的
v. finish的过去式和过去分词

Finishing touches
收尾工作

It was an exciting finish.
比赛结尾是激动人心的。

Are you finished with the scissors?
你用完剪刀了吗？