In one experiment, nearly 200 participants boarded a double-decker bus for a tour of Philadelphia.
在一项实验中,近200名参与者登上一辆双层巴士游览费城。
It wouldn't even be a double-decker bus. It would be a simple briefcase.
那也不会是一辆双层巴士,而仅仅是个的行李箱公文包。
If you ride on a double-decker bus you can see more things from the top deck.
坐在双层巴士的上层位置上,可以看到更多车外景色。
Boeing's rival Airbus put on a show of its own, with its A380 double-decker soaring above potential buyers.
VOA: standard.2010.07.23
London may be famous for its red double-decker buses, but it is the underground system, parts of it more than a hundred years old, that is especially vulnerable.
VOA: standard.2010.04.01
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