Have a plan for your time in the air.

规划好你在飞机上的时间！

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If you're planning to fly on the day before Thanksgiving, be warned. Going through security may take longer than your time in the air.

如果你想在感恩节前一天乘飞机回家，你可要做好心理准备，安检的时间可能比飞行的时间还要长。

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Male athletes have more time in the air them female, which is helpful for the completion of air rotary action, and also makes a good landing stability.

男运动员腾空时间大于女运动员，有利于空中旋转动作完成，落地稳定性好。

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He began as a juggler, someone who can keep several objects in the air at the same time.

VOA: special.2009.03.09

It goes up, stays in the air for a very long time, but it falls on your head.

它先上升 在空中停留很长时间,但是它会直接落在头上

耶鲁公开课 - 基础物理课程节选

You see how long you are in the air and the whole time you are in the air, you are traveling horizontally at this speed.

你可以知道在空中停留的时间,当你在空中运动的时候,你一直以这个水平速度在运动

耶鲁公开课 - 基础物理课程节选

That means you can land much closer to your ultimate destination, making up on the ground for any lost time in the air.

FORBES: The Most Successful Aircraft Design Gets Even Better

Bush's time in the Air National Guard was marked by accusations that he used his father's influence to avoid active duty, and that he failed to fulfill his commitment.

FORBES: Magazine Article

Responding to questions about whether Bush was present for all required duty during his time in the Air National Guard in the early 1970s, the White House on Friday released what Bush aides said were all documents relating to the president's service.

CNN: Bush campaign set to turn up the heat