<正> LESSON 25(PP.156—157)1.dos and don’ts 的正式写法是 do’s and don’ts,意为:“规章制度,行为准则,注意事项”。例如:Before you study a foreign language,you should learn the dos anddon’ts of studying it.For example one of the dos of studying a foreignlanguage is:practice as much as you can because it’s a skill.One of the