1.But this you cannot do with any success without knowing the language, for language is the principal system of communication
2.This task alone is quite enough to cause frustration and anxiety, no matter how skillful language teachers are in making it easy for you.
1.But this you cannot do with any success without knowing the language, for language is the principal system of communication.第一句是for引出的表示原因的并列句。第一句but是介词，but this (除此之外),不懂那门语言你不能成功，因为语言是交流的基本体系。2.This task alone is quite enough to cause frustration and anxiety, no matter how skillful language teachers are in making it ea
