| 例句 |
Supersonic planes can travel faster than the speed of sound.超音速飞机的速度比音速快。These planes travel at twice the speed of sound.这些飞机以两倍音速飞行。That misfired rocket headed for the island with hypersonic speed.那个误射的飞弹以超高音速朝小岛飞去。The plane touched the speed of sound in a power dive.飞机在俯冲骤降时达到了音速。The aeroplane will travel at twice the speed of sound.这架飞机的速度将是音速的两倍。The jet can fly at twice the speed of sound.这喷气式飞机能以两倍于音速的速度飞行。 |