1 sentence

1. 长时间保持不正确的坐姿容易损伤腰椎。

   cháng​shí​jiān bǎo​chí bù zhèng​què de zuò​zī róng​yì sǔn​shāng yāo​zhuī.

   Maintaining an incorrect sitting posture for a long time can easily damage the lumbar spine.

   Source: Dong Chinese Dictionary