Chinese is a typical tone language. It has four tones: the level, the rise, the fall-rise and the fall.

英语里共有四种基本语调类型，即大家所知的那四种语调：降调，升调，降升调，升降调。

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Using the theory of fuzzy sets the membership function is adopted for the four tone pattern classification.

应用模糊集合理论，构成隶属函数对四声进行模式分类。

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The tone is set in the four-page prologue which contains 34 instances of the words “I”, “me” or “my”.

这一基调在他的序言里就有所显现，在长达4页的序言中“我”，“我的”这些词汇就出现了34次。

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One question asked if and how the shootings might change the tone of politics, and offered four possibilities.

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How else to explain the sad-sack tone from the leaders of the four biggest U.S. banking companies after their respective earnings announcements in the last week?

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In 2002, he started Jea mobile ring tone and games company, Haiku, with four partners that he sold in 2005 to Index Group.

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