他手臂上的静脉很粗。

The vein on his arm is very thick.

蚊子正在吸吮他手臂上的血。

The mosquito is sucking blood from his arm.

医生检查了他手臂上的瘀斑。

The doctor examined the ecchymosis on his arm.

医生检查了他手臂上的损伤。

The doctor examined the lesion on his arm.

血液从他手臂上的伤口涌出。

Blood welled from the cut on his arm.

他手臂上的深切口导致了结疤。

The deep cut on his arm resulted in scarring.

他手臂上的伤口开始痛苦地跳动。

The wound on his arm started to throb painfully.

他手臂的突然抽搐吓到了所有人。

The sudden jerking of his arm startled everyone.

他手臂上的纹身是永久地刻上的。

The tattoo on his arm is permanently inked.

他在事故后给我看了他手臂上的淤青。

He showed me the bruises on his arm after the accident.