1·The ball looped high up in the air.
球高高飞起，在空中画了一条弧线。
—— 《牛津词典》
2·Our travel plans are still up in the air.
我们的旅行计划尚未决定。
—— 《牛津词典》
3·Note how these animals sometimes walk with their tails up in the air.
注意观察这些动物有时如何翘起尾巴走路。
—— 《牛津词典》
4·Since a plant uses it up in the air around, the plant needs moving air to bring more CO2 close to its surface!
由于植物会将周围空气中的二氧化碳耗尽，因此需要空气流动将更多的二氧化碳带到其表面！
5·Hold the windsock up in the air by its string and run around.
用绳子把风向标举起来，然后跑一圈。
6·"You just think lovely wonderful thoughts," Peter explained, "and they lift you up in the air."
“你只要想一些有趣的事情，”彼得解释说，“它们就会把你带到空中。”
7·We are cruising along at 30 mph when, suddenly, the car flies up in the air and lands with a dull thump.
我们正以每小时30英里的速度行驶，突然，汽车腾空而起，砰的一声重重地落在地上。
8·She never really crawled, but would scoot around with her head on the floor, bottom stuck up in the air.
她从来没有真正地爬过，但她会把她的头放在地板上，屁股翘在空中快速移动。
9·If it is displayed on such occasions, do not allow the flag to fall to the ground, but let it be carried high up in the air to form a feature of the ceremony.
如果在这种场合展示国旗，不要让国旗掉到地上，而是让它高高地悬在空中以构成仪式的特色。
10·Up in the Air (Jason Reitman).
《在云端》贾森。