morning exercise可数吗 那do morning exercise要加s吗

1个回答

  • exercise作名词时,当其表示“运动”时,它是个不可数名词,常用短语有:do/take exercise (相当于do/play sports); 当其表示“体操”、“练习”式,它是个可数名词,常用复数形式.如:do morning/eye exercise; finish the exercises on the blackboard.