book language是什么意思 book language怎么读
book language的英文翻译是什么意思，词典释义与在线翻译
book language的用法和样例
- We must distinguish between the spoken language and written lan-guage.
我们必须区别口语和书面语。 - Many words that may be used in the written language are not suitable for use in the spoken language.
在许多书面语中的词汇，用在口语里是不合适的。
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