My left arm had gone dead.

我的左胳臂已经麻木了。

《牛津词典》

My left arm is badly bruised and I was slightly concussed.

我的左臂有严重瘀伤，而且我还有轻微的脑震荡。

《柯林斯英汉双解大词典》

His left arm is in plaster.

他的左臂打着石膏。

youdao

Her left arm holds a tablet with the date of the Declaration of Independence July fourth,seventeen seventy-six.

VOA: special.2009.06.29

And it turns out that when it was quiet, the arm was moving to the left.

事实上，当寂静的时候，手臂在向左移动。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

This is happening while making arm movement from the left into the right.

当手臂从左向右活动的时候，就会出现这样的情况。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

"It's like Wal-Mart, " Outlaw said, after getting a shot in her upper left arm.

CNN: Cast a vote, get vaccinated, nonprofit urges

The shot from just inside the top of the left circle went under Lundqvist's left arm.

WSJ: Marchand lifts Bruins, 3-2 in OT over Rangers

She was hooked to a monitor and had an intravenous drip in her left arm.

NPR: Woman Rescued From Bangladesh Rubble Recovering