你必须重视习语，因为它们对于学习英语至关重要。（原因）
You must pay much attention to idioms which are very important in learning English.
前面提过，学习商务英语也是在学习英语，学习语言的基本技巧是一样的，只是在词汇的范围上不同。
Front once lift, study business English is also at study English, study language of the basic technique be similar, be just scope dissimilarity in vocabulary.
由于我在英语语法上也存在困难，我参加了一个英语学习班学习语法。
Since I also have trouble in English grammar, I attend an English class to study grammar.
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