body activity

• 身体活动

body activity的用法和样例：

例句

1. Muscles contract and relax during physical activity.
   身体活动时肌肉收缩放松。
2. These devices target cells in the areas that cause unwanted movements of the body.
   这种装置针对的对象是造成非主观身体活动的区域的细胞组织。