Unit 1. 词汇 1.To lose weight,katie substituted(代替)some low-fat foods for high-fat foods. 2.Our science teacher d...
Unit1.词汇1.Toloseweight,katiesubstituted(代替)somelow-fatfoodsforhigh-fatfoods.2.Ourscienceteacherdrewananalogy（类比）betweenthe...
