When two couples go out together, we call it double dating.

当有两对恋人一起出去时，我们称之为“结对约会”。

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In the book Double Your Dating by David Deangelo, you can find many powerful methods for generating massive attraction immediately when you meet a girl for the first time.

大卫。狄安杰罗的《约会倍增术》你将学到爆强的方法让你在第一次和某个女孩见面的时候迅速的散发出巨大的魅力。

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"AD 1189, Prince Gong Song Guangzong first sealed, then Jidi Wei, claiming that" double happy "or Christine the state government of Chongqing, Chongqing, hence the name, dating back over 800 years."

公元1189年，宋光宗先封恭王，后即帝位，自诩“双重喜庆”，升恭州为重庆府，重庆由此得名，距今已有800余年。

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Another black seventh grader who participated in the study, 13-year-old Chantay, admitted she, and others in her extended family, had a double standard regarding interracial dating.

CNN: STORY HIGHLIGHTS

One of his first, and most unpopular, acts was to scrap the much-loved but decrepit fleet of Routemaster double-decker buses, dating from the 1950s.

CNN: London mayoral election: Battle of the buses