Lesson 61 Trouble with the Hubble 哈勃望远镜的困境Read the text and then answer the question.读课文，然后回答以下问题...
18-15HerecomesTroubleWrittenbyTessaKrailingandillustratedbyJanLewisChapter1OnFridayafternoonClassSevenhadanArtlesson.Itwastheirfav...
Troubleisafriend•Troublewillfindyounomatterwhereyougo,ohoh•无论你在何处困难都会找上你哦哦•Nomatterifyou'refast,nomatterifyou're...
