helpless
/ˈhelplɪs/adjective
1- unable to defend oneself or to act without help无法保护自己的, 无能为力的：
the cubs are born blind and helpless.
那些幼兽生来就瞎, 无法保护自己。
1.1
- uncontrollable无法控制的：
they burst into helpless laughter.
他们突然不由自主地大笑起来。
派生词