外研版（2019）必修第一册Unit2ExploringEnglish词汇解析讲义unit2Point1havetrouble(in)doingsth.教材语境P14>>HaveyoueveraskedyourselfwhypeopleoftenhavetroublelearningEnglish你有没有问过自己，为什么人们学英语常常有困难？用法详解havetrouble(in)doingsth.意味“做某事有困难。Ifyouoftenskipbreakfast,youwillhavetrouble(in)concentratinginclass.如果你经常不吃早餐，你就很难在课堂上集中注意力。InChinamanydiff...
