1.
"first class:The first, highest, or best group in a system of classification"
一级:在分类系统中最先的、最高的或最好的.
2.
The earliest ancestor.
始祖，祖先最早的祖先
3.
A set of stored data in which the first item to be retrieved is the one stored earliest.
先进先出存储器一组存储数据，其中最先输出的项目是最先存入的
4.
first-priority item
受到最优先考虑的项目
5.
Let's begin with the ugliest hippopotamus.
我们先看最丑的河马吧。
6.
The oldest tailor tried first.
年纪最大的裁缝先猜。
7.
one of the most modern shopping centres in the country
全国最先进的购物中心.
8.
Road building is a top priority.
筑路是最优先考虑的事。
9.
Get me confirmation on the first available flight.
替我确定最优先的班机。
10.
Say whatever comes uppermost.
把最先想到的说出来。
11.
"No, it is not," said Mrs. Lu Xun. "It's a very tough plant."
许先生说：“不怕的，最耐久!”
12.
FIFO: Short for "First-in,first-out".A method of manipulating data in a computer wherein the first data entered is the first data to be used.
先进先出:文是［先进先出］的略字。是电脑处理数据的一种方法，最先输入的数据最先被处理。
13.
Those applications arriving first will receive precedence.
最先到的申请者将有优先权
14.
Mr. De Witt was the first to recover the power of speech.
最先恢复说话本能的是德韦特先生。
15.
In the lives of mortals, the best days are the first to flee.
凡人的生命中，最好的日子最先消失。
16.
the most advanced and responsible group in an activity.
在一次活动中最先进、最可靠的群体。
17.
The experiences of the prophets are the best reading materials for later generations.
先知先觉们的经历正是后人最好的读本。
18.
A competitor who performs best when in the lead.
竞争领先者领先时有最佳表现的竞赛者