exercise和exercises的区别?请举例

exercise和exercises的用法 exercise和exercises的区别?请举例 physical exercise 和physical exercises的区别是?何时用physical exercise,何时用physical exercises? Exercise和exercises什么区别? exercise和exercises在这里的区别英语 more exercise 和 more exercises的区别 速求! 关于exercise,exercises的用法We do morning ____everymorning.And we do _____after school.A.exercises; exercises B.exercises; exercise C.exercise; exercises并请翻译一下 exercise 与exercises 的区别及用法 exercise 与exercises 的区别及用法 do more exercises,do more exercise,do some exercise,do some exercises的区别 exercise 和 exercises的区别?do morning exercises是做早操?do morning exercise是早锻炼?do exercises到底是锻炼还是做习题- -我凌乱了求解释… do exercise和do exercises有什么区别? 英语：do exercise 和do exercises 有什么区别? take exercise和take exercises的区别 do exercise和do exercises的区别 请逐一回答请写出汉译和区别，3Q要标准的，最好是老师讲的 做早操的英文是exercise还是exercises do exercise 和do exercises的区别看到很多种不同的答案,希望有个比较权威的答案 关于sports 和 exercise的几个问题给我些常见的sports 和 exercise的短语和词组、主要用于区别它们可数不可数的、如do exercise /do morning exercises等等.越多越好、 关于sports 和 exercise的几个问题给我些常见的sports 和 exercise的短语和词组、主要用于区别它们可数不可数的、如do exercise /do morning exercises等等.越多越好、