您要查找的是不是：
- law-abiding citizens; observant of the speed limit. 守法的公民；遵守速度限制。
- The speed of the toy boat is variable. 玩具船的速度是可变的。
- When did the first measurement of the speed of sound take? 第一次测量声速是在什么时候？
- The workers have timed the speed of the machine. 工人们已经调准机器的速度。
- The worker is timing the speed of the machine . 这名工人正在调整机器的速度。
- What's the speed of the film you're using? 你用的胶卷感光度是多少?
- What was the speed of the spaceship? 飞船的速率是多少?
- The worker was praised for his observance of the rules. 这个工人因为严格遵守规则而受到了表扬。
- observant of the speed limit. 遵守速度限制。
- Gets the speed of the network interface. 获取网络接口的速度。
- How did you find the speed of the courts? 你觉得场地速度如何?
- You should be observant of the traffic rules. 你应该遵守交通规则。
- The speed of the car began to pick up. 汽车速度开始加快。
- A careful driver is observant of the traffic rules. 谨慎小心的驾驶者严格遵守交通规则。
- The speed of the car was 85 kilometres per hour. 这汽车的速度是每小时85公里。
- Acute observers of the human comedy. 对人间喜剧敏感的观察者们
- Adherence to or observance of the law. 信奉或遵守法律
- I only caught a glimpse of the speeding car. 我只瞥见那部疾驰的车子。
- It is said that James Watt's observation of steam issuing from a kettle gave birth to the idea of the steam engine. 据说，詹姆斯·瓦特对水壶蒸气的观察使他产生了发明蒸汽机的想法。
- In the absence of air the speed of the body depends only on the time of the fall, and does not depend on the body's weight. 在没有空气的情况下，物体的速度只取决于下落的时间而不取决于物体的重量。
