Reached out an arm.

• 伸出一只手臂

Reached out an arm.的用法和样例：

例句

1. He lost an arm, and the right arm at that.
   他失去了一只手臂，而且又是一只右臂。
2. He threw an arm around my shoulder and nursed me step by step forward.
   他伸出一只手臂抱住我的肩膀，扶着我一步一步地往前走。