第1个回答 2008-03-22
Learn carefully and play joyfully.
第2个回答 2008-03-22
When you study, you study; when you play, you play.
第3个回答 2008-03-22
When you study, you should concentrate; when you play, you should play with your whole heart as well.
第4个回答 2008-03-22
全部用第一声来念本回答被提问者采纳