Unit 2Exploring Englishdisappearedunableinformalimpolitemisunderstoodencouragedstormyfriendlysimplyhelpfulhappinessequipment第一个book是动词，预订；第二个book是名词，书。第一个study是动词，学习；第二个study是名词，书房。第一个walk是名词，散步；第二个walk是动词，走。speaking ofconfusingreflectdo a good jobactuallyexchangeJack has some trouble understanding Chinese snacks.Neither does he want to eat themI spent a long time persuading him to have a try.本部分内容讲解结束按ESC键退出全屏播放
