before[
bɪ'for]
prep. 
...


conj.
...

ad. 

[
] 临
- I have seen that film before.
那
影

看
。 - He always put the interests of others before his own.
总把

利益


位。 - He will die before he submits.

死
屈。
before[ adv ]- earlier in time; previously
<adv.all>
I had known her before
as I said before
he called me the day before but your call had come even earlier
her parents had died four years earlier
I mentioned that problem earlier
- at or in the front
<adv.all>
I see the lights of a town ahead
the road ahead is foggy
staring straight ahead
we couldn't see over the heads of the people in front
with the cross of Jesus marching on before

Before \Be*fore"\, prep. [OE. beforen, biforen, before, AS.
beforan; pref. be- + foran, fore, before. See {Be-}, and
{Fore}.]
1. In front of; preceding in space; ahead of; as, to stand
before the fire; before the house.
His angel, who shall go
Before them in a cloud and pillar of fire. --Milton.
2. Preceding in time; earlier than; previously to; anterior
to the time when; -- sometimes with the additional idea of
purpose; in order that.
Before Abraham was, I am. --John viii.
58.
Before this treatise can become of use, two points
are necessary. --Swift.
Note: Formerly before, in this sense, was followed by that.
``Before that Philip called thee . . . I saw thee.''
--John i. 48.
3. An advance of; farther onward, in place or time.
The golden age . . . is before us. --Carlyle.
4. Prior or preceding in dignity, order, rank, right, or
worth; rather than.
He that cometh after me is preferred before me.
--John i. 15.
The eldest son is before the younger in succession.
--Johnson.
5. In presence or sight of; face to face with; facing.
Abraham bowed down himself before the people. --Gen.
xxiii. 12.
Wherewith shall I come before the Lord? --Micah vi.
6.
6. Under the cognizance or jurisdiction of.
If a suit be begun before an archdeacon. --Ayliffe.
7. Open for; free of access to; in the power of.
The world was all before them where to choose.
--Milton.
{Before the mast} (Naut.), as a common sailor, -- because the
sailors live in the forecastle, forward of the foremast.
{Before the wind} (Naut.), in the direction of the wind and
by its impulse; having the wind aft.
Before \Be*fore"\, adv.
1. On the fore part; in front, or in the direction of the
front; -- opposed to {in the rear}.
The battle was before and behind. --2 Chron.
xiii. 14.
2. In advance. ``I come before to tell you.'' --Shak.
3. In time past; previously; already.
You tell me, mother, what I knew before. --Dryden.
4. Earlier; sooner than; until then.
When the butt is out, we will drink water; not a
drop before. --Shak.
Note: Before is often used in self-explaining compounds; as,
before-cited, before-mentioned; beforesaid.