求翻译：到底是什么原因使得留学生在使用英语方面变得如此困难，如果以达到有效交流为目的，英语的发音、语法、句子绝对没有国内的各种人士强调的那么重要，而被国内学英语的人士忽略的、也恰恰是最重要的部分是：表达语言所应用的、符合英语文化和习俗的正确方式、方法和内容。 语言是其文化和习俗的载体、沉淀，虽然人类的各种文化多少有相通的一面，但是更多的是其特殊的一面。而西方文化有着与中华文化截然相反的一面。例如，她崇尚“积极进取的态度，和中国人“谦虚、艺术”的处事、说话原则，经常发生“雅冲突”，构成对有效交流的妨碍。这就是所谓的“文化冲突、差异”。是什么意思？

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What is the reason for the students to the use of the English language has become so difficult to achieve effective communication purposes if, English pronunciation, grammar, sentence is absolutely no domestic various sources stressed the importance of learning English, and all of the country, and i

What is what causes makes students in using English aspects became so difficulties, if to reached effective exchange for purpose, English of pronunciation, and syntax, and sentences absolute no domestic of various persons stre