Another surge of pain in my ankle caused me to give an involuntary shudder.

脚踝突然又一阵疼痛，痛得我直打哆嗦。

...insurance policies that cover involuntary unemployment.

涵盖非自愿失业的保险单

Involuntary repatriation of Haitians began this week.

这周已开始将海地人强制遣送回国。