对于这门拥有世界上使用人数最多、文学历史最悠久的语言来说，这股学习热潮早该出现了。
Considering that Chinese has the largest number of speakers in the world and the greatest time depth in its literature, this interest is long overdue.
商品叫卖语言应该是一种有着悠久历史的商务语言现象。
The crying language is a kind of business language with a long history.
澳大利亚是一个拥有丰富文化和悠久历史的国家，它的官方语言是英语。
Australia is a great country with rich cultures and long history. Its official language is English.
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