Hints: 本期学习的字源：rect=right正，直 Homo erectus 单词不需要大写，单词与例句或不同词条之间换行即可。 注解中详细介绍了单词的拆分与释义，是学习字源分析的重中之重！一定记得听写后来看注解！
correct rectangular His house is situated on a rectangular piece of land. rectifiable Don't worry. The mistake is rectifiable. rectify It's not too late to rectify that mistake. rectitude Our minister is known for his moral rectitude. directory I found your number in the telephone directory. erect Homo erectus is so named because he stood erect. insurrection The leader of the insurrection, if successful, may become the next president.
His house is situated on a rectangular piece of land. 他的房子坐落在一块长方形的土地上。 Don't worry. The mistake is rectifiable. 别担心，这个错误时可以改正的。 It's not too late to rectify that mistake. 要改正那个错误还不算太晚。 Our minister is known for his moral rectitude. 我们的牧师以操守正直闻名。 I found your number in the telephone directory. 我在电话索引中找到你的号码。 Homo erectus is so named because he stood erect. 直立猿人得名自直立的特征。 The leader of the insurrection, if successful, may become the next president. 如果成功的话，这次起义的领袖可能成为下一任总统。