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”。

And if you haven't read my eBook "Double Your Dating", then you need to do that NOW.

如果你还没有读我的电子书《约会倍增术》，那么你现在要去看看了。

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。

The best guide to creating attraction regardless of height is Double Your Dating.

不管你有没有身高优势，《约会倍增术》都会是你增添吸引力最好的引导

"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。

Numerous jet fuel monitoring facilities for buried double wall pipe systems dating from the late 1980's to the present.

的翻译是：许多航空燃油监测设施的双墙埋管系统可追溯至1980年代后期到现在。

"Double spike" isotopic dating method of lead isotope is one of the dating ways of lead isotope, its aim is to correct mass differentiation effect and enhance the precision of measure.

铅同位素“双稀释剂”同位素定年法是当前应用较广的一种铅同位素定年方法。双同位素稀释法的目的在于校正质量鉴别效应，提高测定精度。