Is there an arm? Yes, there is.

有一只手臂吗？是的，有一只。

youdao

It's an arm, yer honour!

它是一只胳膊，阁下！

youdao

Steven lost an arm after a traffic accident years ago.

史蒂文在几年前的一次交通事故中失去了一只手臂。

youdao

An untreated or incorrectly treated bite might require the removal of a bitten foot, for example,or an arm.

VOA: special.2010.01.25

Lose an arm, lose a leg, lose the brain--he is not alive.

没了胳膊，没了腿，但没了大脑，人不可能活下去。

耶鲁公开课 - 死亡课程节选

Let's get somebody. There's a guy waving an arm out there.

我们换个人吧,那个在挥手的人

耶鲁公开课 - 博弈论课程节选

The Federal Transit Administration, an arm of the Department of Transportation, has even explicitly promoted SILOs.

FORBES: Will SILOs Collapse?

It's based on an ARM 32-bit processor running embedded Android and contains a Wi-Fi interface.

ENGADGET: Ube WiFi Smart Dimmer to receive customized multitouch gesture control

However, Apple increasingly makes its own processors for iOS under an ARM architectural license.

FORBES: Tech Earnings Preview: Reading The Tea Leaves