尾号的英文：
tail number

tail是什么意思：
n. 尾巴；尾部；辫子；燕尾服；尾随者
v. 跟踪，尾随

the tail of a train
火车的尾部

A human being has the vestige of a tail.
人类仍有尾巴退化的痕迹。

The police have got a tail on the criminal.
警察雇到一名暗探跟踪罪犯。

The shower tailed off into a drizzle.
阵雨越来越小，最后变成了毛毛雨。

Long tailed anchovy
凤尾鱼

number是什么意思：
n. 数；号码；算数
v. 给…编号；计算，数

The number was fifty.
该数字为五十。

There is safety in numbers
人多势众

It was an irrational number.
这是一个无理数。

Which number on the card is a prime number?
在卡片上哪一个数字是最初的数字？

The number raised to the logarithm of a designated number in order to produce that designated number.
被升到指定数字的对数上的数量,是为了得到那被指定的数目。