speed的意思是速度。音标[spiːd]作为名词的意思是速度；成功；繁荣。作为动词的意思是快速移动；使兴旺发达；帮助成功。例句：
1. He pushed everyone full speed ahead until production hit a bottleneck. 他催促所有人拼命干活，直到生产遭遇瓶颈。
2. The camera combines rugged reliability with unequalled optical performance and speed. 这款相机既坚固耐用，又有超凡的光学性能和快门速度。
3. It all started so promisingly when Speed scored a tremendous first goal. 比赛开始的时候形势大好，斯皮德以一记精彩的进球拔得头筹。
4.The car has a top speed of 147 mph.汽车最高时速是147英里。
5.The car that crashed was speeding.撞毁的那辆车超速行驶了。
