Gretel loves the red double-decker buses in London.

格莱托喜欢伦敦的红色双层公共汽车。

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The traditional red double-deckers are a symbol of London.

传统的红色双层巴士是伦敦的象征。

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Stand in the water jump, water one after another. Recall that there was a red double rubbers.

站在水里跳，水花一朵朵。想起以前，曾经有双红色的雨鞋。

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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

If I had a beaker sitting on the table here and it contained a million blue double stranded DNA molecules and a million red double stranded DNA molecules and I heated it up and added a little base, I'd soon have four million individual strands just floating around in the solution because I've broken up this hydrogen bonding and the DNA molecules fall apart.

假如我这里有一个烧杯 里面,盛有一百万条蓝色DNA双链和,一百万条红色DNA双链,然后我稍微加热一下烧杯,并且加一些碱,很快我就有了四百万条DNA单链,漂浮在溶液里,因为我已经使得氢键断裂,DNA双链也随之打开

耶鲁公开课 - 生物医学工程探索课程节选

Between the 1950s and 2000s, royal red double deckers sported distinctive open platforms in the rear.

BBC: London's iconic buses are back

Once out in traffic, I appreciated how the electric motor assistance gave me the necessary speed to keep up with the red double-decker buses.

BBC: Rent an electric bike in London

Even better, the Irish government goes out of its way to make sure companies don't pay a single red cent in double taxation when they eventually repatriate their profits to their home countries.

FORBES: White '97