The concern with lifting, he says, is that the mother could injure her back or lose balance and topple over.

但他说的对举重物的担心是母亲可能扭伤腰部或因失去平衡而摔倒。

youdao

Once inside the apartment, Dixie pushed me into the bedroom and eyed the mattress with skepticism, saying that she could easily put me on it but feared that she would hurt her back lifting me later.

一到公寓里，Dixie就把我推进卧室，满心怀疑地瞅着床垫，说她能够容易地把我放在它上边，但是害怕的是后边把我抬回去的时候会伤着她的背。

youdao

When I bent my legs and peered in, I could see his back, and the back of his head, and, across the table from him, my smiling radiant wife lifting her wineglass as if in acknowledgment of something he had said.

NEWYORKER: Wakefield