We went to Cambridge University, the other university, and spoke to a Doctor of Mechanical Engineering there, a physicist who taught us that it had to be 37 miles an hour.
我们去了剑桥大学和另一所大学， 请教了那儿的一位机械工程博士， 一位物理学家告诉我们，必须以37英里的时速驾驶。