锻炼身体英文(做眼保健操的英文是do Eye exercises为什么exercise加s呢?它是不可数名词吧)

exercise 作名词时视含义不同，可能可数也可能不可数。

活动；运动activity/movements

1. [u]（身体或脑力的）活动，锻炼，运动physical or mental activity that you do to stay healthy or become stronger

2.[c]（保持健康或培养技能的）一套动作，训练活动，练习a set of movements or activities that you do to stay healthy or develop a skill