1.作可數(shù)名詞用,“練習(xí),習(xí)題,體操,功課,操練”等,常用復(fù)數(shù).
I'm doing my exercises.我在做練習(xí)/功課.
Doing morning exercises is helpful to our health.做早操對(duì)我們的健康是有益的.
You should do more spelling exercises.你應(yīng)該做更多的拼寫(xiě)練習(xí).
2.作不可數(shù)名詞用,“鍛煉,運(yùn)動(dòng)”.
You are weak because of the lack of exercise.你身體弱是因?yàn)槿鄙馘憻?
Take more exercise,and you will be healthy.多多鍛煉,你會(huì)健康的.
3.作動(dòng)詞用,“訓(xùn)練,鍛煉”.
You must exercise yourself in order to be stronger and healthier.為了更健康更強(qiáng)壯,你必須鍛煉自己.
They are exercising troops.他們?cè)诰毐?
You don't exercise enough.你鍛煉不夠.［作不及物動(dòng)詞］
作動(dòng)詞用還有“履行職責(zé),行使全力”等意思.
You must exercise your own duty.你必須履行你自己的職責(zé).