Tourist photos are marked red, local photos are marked blue, and photos where tourism could not be determined were marked yellow.

旅行者的照片被标记成红色，当地的照片被标记成蓝色，那些不能确定具体是哪里的照片被标记成黄色。

youdao

So they've got these superhighways which is, I don't know if you've seen them, they are marked on in blue.

所以，他们修了这些高速路，我不知道你见过没有，他们被标成蓝色了。

伦敦的蓝色自行车 - SpeakingMax英语口语达人

Only the upper right fringe of the city was marked blue for high income.

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Both Runway 27R and Taxiway M are 11, 890 feet long, Bergen said, but the runway is marked with white lights while the taxiway is marked with blue lights.

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In a marked change from the brilliant blue of the morning, the weather had turned rough, with bruised skies and choppy swells putting a hold on our kayaking adventure.

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