The woman's health gets worse and worse, but she can't do anything about it. She is completely under his thumb.

这个女人的身体越来越差，但她对这一切都无能为力。她完全被他的亲戚管控了。

I was always in debt to him, always under his thumb, always a working, always a getting into danger.

我总是欠他的债，总是受他的控制，总是工作，总是陷入危险。

He reaches down and wraps his hands around one of Henry's wrists, feeling the racing pulse under his thumbs.

他伸手握住亨利的手腕，感受拇指下急速的脉搏。