1. If you don't have money, you're powerless. 如果你没有钱，你就无能为力。
2. I saw what was happening, but I was powerless to help. 我眼看着事情发生，却无力相助。
3. People are being murdered every day and I am powerless to stop it. 每天都有人被杀害，而我却无力制止。
4. The twin lights, the shifting grey and the steadfast red, mastered the Water Rat and held him bound, fascinated, powerless. 变幻莫测的灰色和坚定不变的红色，这两道光芒控制住了河鼠，使他处于动弹不得，痴痴迷迷，又无能为力的状态。
5. It seems hard to believe that we can deal with more serious diseases yet are powerless against something so common as a cold. 让人难以相信的是，我们能够治疗更严重的疾病，却无力对抗像感冒这样常见的疾病。
