The explosion nearly took his arm off.

他的胳膊差点儿被炸掉。

《牛津词典》

He brought his arm up in a futile attempt to ward off the blow.

他出于挡住这一击的无谓企图抬起了他的胳膊。

《柯林斯英汉双解大词典》

youdao

One of them took hold of my arm. He shook me and lifted me off the ground.

VOA: special.2010.07.17

Suppose Darth Vader had ended a little higher and cut off Luke's entire arm.

假设达斯·维特最后太激动了,把卢克整只胳膊都砍掉了。

耶鲁公开课 - 死亡课程节选

Once again, he took off a metal band from his arm and gave it to me.

VOA: special.2010.07.31

Then Ali would finish off his arm-weary opponent.

CNN: From Charles Bierbauer

Last year, it spun off its research arm into a new company, Prothena.

FORBES: In Wise Move, Biogen Spends $3.25 Billion For Rest Of Tysabri. Now What Happens To Elan?

"Unless you're a master at using it, you can cut your arm off, " he said.

WSJ: When Freemium Fails