spine

她在一次骑马事故中伤到了脊柱。

She injured her ___spine in a riding accident.

坐直对你的脊柱健康有益。

Sitting up straight is beneficial for the health of your ___spine.

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.