1.
To get ahead of(an opponent) in a race by one or more complete circuits of the course.
领先在赛跑时领先（对手）一圈或多圈
2.
Happiness lies, first of all, in health .
幸福首先在于健康。
3.
Where are you, Mr Tortoise?
龟先生，你在哪儿？
4.
But first in the school-rooms.
但首先是在教室 。
5.
Unfortunately, Mr. Chen is not available at the moment.
对不起，陈先生现在不在。
6.
Thank you, sir. Would you care to take a seat while I make out a receipt?
谢谢，先生，我在出收据时能否先坐一下？
7.
( Mr. Johnson is asking how to get to Mr. Lee 's office . )
(Johnson先生正在问怎样去李先生的办公室。）
8.
exist beforehand or prior to a certain point in time.
预先存在或者及时居先某一点。
9.
Taking place, done, or given beforehand; prior.
在先的,居先的提前发生、做或给予的
10.
The Trademark Office, of course, gives precedence to the person who files first.
商标局对申请在先的自然予以优先。
11.
To come, exist, or occur before in time.
先于…先于…之前出现、存在或发生
12.
To occupy or take possession of in advance or before another.
先占预先或在另一人之前占据或占有
13.
The right of being first at the tee in golf.
先打权在高尔夫球中首先发球的权利
14.
where the applicant wishes to take advantage of the priority of an earlier application
申请人希望获得在先申请优先权的
15.
"Mr. Green, Mr. Smith is here."
格林先生，史密斯先生在这里。
16.
Mr Li, Mrs Chen and Mr Wu are waiting for us in the dance hall.
李先生、陈太太和吴先生在舞厅等我们。
17.
Theme Then Writing"、"Writing Then Theme" and "Theme First;
“意在笔先”、“意随笔生”与“主题先行”
18.
stirred the soup Before tasting it.
在喝汤之前先搅一搅