1.
the first [second] fiddle
第一 [第二] 小提琴
2.
reporting officer (first/second) (
第一/第二)考绩人
3.
the primary/secondary/tertiary industry (the service sector)
第一/第二/第三产业
4.
The First of the Seventy-First is come.
第七十一的第一条来啦。
5.
clients first, reputation first
客商第一，信誉第一
6.
first inning
第一轮,第一次发球权
7.
(16) commercial (first);
(16)商界(第一)；
8.
Prestige First, Quality First, Efficiency First and Service First.
例13：信誉第一，质量第一，效率第一，服务第一。
9.
Be the best man,do the best thing,say the best worss,and have the best aspirations.
做第一等人,干第一等事,说第一等话,抱第一等识.
10.
To make a bid, bet, or lead in starting a game of cards.
第一个叫牌，第一个下注，第一个打牌
11.
CHAPTER III PREVENTION AND CONTROL OF ENVIRONMENTAL POLLUTION BY SOLID
第一节 一般规定
12.
The the second one is not better equal to the first.
第二条不如第一条好。
13.
Act 1,Scene 2 of `Macbeth'
《麦克佩斯》第一幕第二场
14.
the first [ second ] violin
第一[第二]小提琴(手)
15.
come in first (second, etc.)
（赛跑）得第一（第二等）名
16.
Paris I-XIII,Universities of
巴黎第一～第十三大学
17.
The seeond integral is easier to approximate than the first one.
第二个积分比第一个积
18.
"Ezer their chief, Obadiah the second, Eliab the third,"
第一以薛，第二俄巴底雅，第三以利押，