MIT’s D “double bubble” series design concept is based on a modified “tube-and-wing” structure that has a very wide fuselage to provide extra lift.

麻省学院的D型“两个泡泡”系列设计概念基于改进过的“管状机身和一对后倾机翼”结构，机身更加宽大，可以提供额外的升力。

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The "double bubble" D8 Series concept is based on a modified tube and wing with a very wide fuselage to provide extra lift.

这款“双气泡”D8系列设计通过将机舱与机翼融合从而形成了一个相对较宽的机身从而提供额外的载客量。

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I guess a lot of folks long for tech’s bubble days, when “concept IPOs” raised $100 million and investors got rich and poor in the same tax year.

我想很多人在等着看高科技泡沫破灭的时刻——“IPO筹集到1亿美金，投资者在同一天尝到一夜暴富和一夜一无所有的感觉。”

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