vulnerable

老年人经常容易受到电话诈骗的影响。

Elderly people are often ___vulnerable to phone scams.

脖子是人体脆弱的部位之一。

The neck is one of the ___vulnerable parts of the body.

没有安装杀毒软件的电脑很容易受到病毒攻击。

Computers without antivirus software are ___vulnerable to virus attacks.