大家都搜：
后飞速度
1、steps backward───DaoTui；返回；逐帧倒放
2、backward───n.后面（或过去）的部分；adv.向后地；往回地；回溯（过去）；每况愈下地；前后反过来（等于backwards）；n.(Backward)（美、俄）巴克克华尔德（人名）；adj.向后的；DaoTui的；（人）智力迟钝的；落后的；（场地位置）线后的
3、work backward───向后工作
4、step backward───DaoTui；返回；逐帧倒放
5、move backward───后退；倒；向后移动
6、kicking backward───向后踢
7、speed───v.快速运动；加速；促进；（使）繁荣；超速驾驶；（非正式）用XingFenJi成瘾；n. (Speed)斯皮德（人名）；n.速度，速率；进度；迅速；繁荣；感光度；排挡；（非正式）安非他明
8、roll backward───[体]后滚翻
9、look backward───回首；向后看
1、Hummingbirds are well known for their wing speed and ability to hover and fly forward and backward with more precision than a helicopter.───蜂鸟的翅膀拍打速度极快，它即可以凌空悬停，也可以快速向前飞行和向后飞行，其飞行的精准度甚至超过了直升机。
2、If you could move at the speed of light, your time would stand still, if you could move faster than light, your time would move backward.───如果你能以光速运动，你的时间就会静止不动，如果你能以比光速快的速度运动，你的时间就会DaoTui。
3、The final step came when steam was introduced into the cylinder to drive the piston backward as well as forward, thereby increasing the speed of the engine and cutting its fuel consumption.───最后一步是将蒸汽引入气缸，使得活塞前后推动，从而提高了发动机的速度，降低了燃料消耗。