He seized his left forearm convulsively with his right hand, as though something on it had hurt him.

他猛地用右手抓住左胳膊，就好像胳膊突然疼痛难忍似的。

He rubbed his left forearm, apparently unconsciously, on the spot where Harry knew the Dark Mark was burned into his skin.

他似乎是不自觉地摸了摸左胳膊，哈利知道那是曾经烙有黑魔标记的地方。

I arrived in America with a mysterious tattoo on my left forearm.

我来到美国时，左前臂上有一个神秘的纹身。

I met a little girl named Gianna, who was missing her left forearm and her hand.

我遇到了一个名叫吉安娜的小女孩，她失去了左前臂和手。

Snape suddenly did something very strange. He seized his left forearm convulsively with his right hand, as though something on it had hurt him.

斯内普突然做了一件非常奇怪的事。他猛地用右手抓住左胳膊，就好像胳膊突然疼痛难忍似的。

Now he made a furious lunge at Stoick, grabbing his left forearm between his massive jaws.

现在，他猛地向斯托伊克猛扑过去，用他巨大的下巴夹住了他的左前臂。