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- The speed of this aircraft is very high. 这架飞机的速度非常快。
- The hurricane has a speed of 73 miles per hour. 飓风每小时73英里。
- The speed of a runaway horse count for nothing. 脱缰之马的速度毫无价值。
- The speed of light is an important constant. 光速是一个重要的常数。
- The speed of the toy boat is variable. 玩具船的速度是可变的。
- The general condition is bettering instead of worsening. 总的情况不是在恶化而是在好转。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- The process or condition of worsening or degenerating. 恶化，变坏恶化或变坏的状况或过程
- Rapidity or speed of motion; swiftness. 迅速，快速运动的快速或速度; 迅速
- When did the first measurement of the speed of sound take? 第一次测量声速是在什么时候？
- Raindrop fall at a speed of about500 to1,000 feet a minute. 雨点以每分钟大约五百到一千英尺的速度下降。
- Airliners in service at present cannot fly faster than the speed of sound. 目前供使用的客运机飞行速度不能超过音速。
- Mach two equals twice the speed of sound. 二马赫相当于声速的二倍。
- The maximum speed of the aircraft is 800 m.p.h. 该飞机的最大速度为每小时800英里。
- The speed of light boggles the mind. 光速之快，不可思议。
- The workers have timed the speed of the machine. 工人们已经调准机器的速度。
- The speed of rockets transcends that of airplanes. 火箭的速度快于飞机的速度。
- Scientists have determined the speed of light. 科学家们已测定出光的速度。
- The worker is timing the speed of the machine. 这名工人正在调整机器的速度。
- SLE sufferers who eat alfalfa sprouts and purple coneflower run the risk of worsening their condition. 红斑性狼疮患者吃了苜蓿芽及紫锥花，造成疾病恶化。
