I think that “狗带” must be one of the hottest words on the Internet this year, but I don’t know ___________

I think that “狗带” must be one of the hottest words on the Internet this year, but I don’t know ____________.

A．what does it mean

B．how it became popular

C．whom was it first used by

【考点】陈述句，宾语从句

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【解答】请登陆后查看

难度：较难

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