她在一次骑马事故中伤了脊柱。

She injured her ___spine in a riding accident.

我必须把我的行李搬到三楼的房间，这很困难，因为我患有脊柱损伤。

I had to carry my luggage to my room on the 3rd floor, which was hard as I suffer from a ___spine injury.

外科医生对他的脊柱进行了手术以减轻压力。

The surgeon performed an operation on his ___spine to relieve the pressure.