If you don't have money, you're powerless.没钱寸步难行。

political and economic systems that keep women poor and powerless使女性一直处于贫穷弱势境况的政治经济体系

Firewalls are often powerless against spyware.防火墙经常无力防御间谍软件。

Many people feel powerless in the face of violence.很多人在面对暴力时感到无可奈何。

He was sympathetic, but powerless to help.他表示同情, 但爱莫能助。

People are being murdered every day and I am powerless to stop it.每天都有人被杀, 而我却无力阻止。