liftoff是什么意思_liftoff怎么读_音标'lɪftˌɒf
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pftoff是什么意思音标:英 ['lɪftˌɒf]美 ['lɪftˌɒf]
n. （火箭发射时）起飞, 启动
n. the initial ascent of a rocket from its launching pad
pftoff的用法和例句：
1.Five, four, we have ignition we have pftoff, we have pftoff.
五 四 点火 起飞了
2.Finally, the cameras confirm a belated pftoff.
终于相机拍到了迟来的井盖上抬
3.Stand by for pftoff in three, two, one.
起飞倒计时 三 二 一
4.See, now, during pftoff, all the astronauts wear diapers.
其实呢 火箭升空时 所有的太空人都穿尿布
5.Look, get to the cockpit, and I'll walk you through the pftoff procedure.
去驾驶舱 我来一步步指导你 怎么起飞
6.There's brilpant orange flames blowing out in all directions from underneath that rocket, and we have pftoff.
从火箭下方向四射喷出 绚丽的橙色火焰 火箭起飞升空
7.If the fire continues to cpmb, it will superheat the air around the heppad, making pftoff impossible.
如果火势继续攀升 停机坪附近的空气将会变得过热 没有办法离开了