1·School safety must come first all the time.
学校安全必须始终放在第一位。
2·The little boy was careful enough to come first in the exam.
这个小男孩很细心，考试得了第一名。
3·Anyone who is a server or who has been one knows that customers always come first.
任何服务员或者曾经做过服务员的人都知道顾客至上。
4·Public affairs should come first.
还是公事要紧。
—— 《新英汉大辞典》
5·Users must always come first.
用户永远第一。
6·This must come first.
这一行动必须要放在首位。
7·The kids come first.
孩子是第一位的。
8·"Education must come first," says Wilkin.
“教育必须先行，”威尔说。
9·We will all know, come first of September.
9月初一切都将水落石出。
10·So the etymology of vichyssoise will come first.
那么先来看一下这个词的词源。