Often he teased me till my temper went and I stamped and screamed, feeling furiously helpless.
他过去经常取笑我直到我生气，又跺脚又尖叫，感觉非常无助。
It made him quite helpless.
这使他很无助。
People can learn to be helpless, too.
人们也可以学会无助。
You have other birds that are helpless when they hatch.
其他鸟在孵化破壳时很无助。