关于英语中once的用法详尽啊……

关于英语中once的用法详尽啊……
关于英语中once的用法
详尽啊……

关于英语中once的用法详尽啊……
once：一次/一旦
表示一旦时,后面跟从句,主将从现

once
[wQns]
n.
adv.一次, 从前, 曾经
conj.
一旦
once
once
AHD:[w¾ns]
D.J.[wJns]
K.K.[wJns]
adv.（副词）
One time only:
仅仅一次：
once a day.
一天一次

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once
[wQns]
n.
adv.一次, 从前, 曾经
conj.
一旦
once
once
AHD:[w¾ns]
D.J.[wJns]
K.K.[wJns]
adv.（副词）
One time only:
仅仅一次：
once a day.
一天一次
At one time in the past; formerly.
过去的某一时间；以前
At any time; ever:
从前；曾经：
Once known, his face is never forgotten.
曾经认识，他的面容让人永生难忘
By one degree of relationship:
关系相隔一代的：
my first cousin once removed.
我堂亲的孩子
n.（名词）
A single occurrence; one time:
发生一次；一次：
Once will have to do. You can go just this once.
必须去做一次，你只去这一回
conj.（连接词）
As soon as; if ever; when:
一…就；一旦；当…时：
Once he goes, we can clean up.
他一走，我们就能清理
adj.（形容词）
Having been formerly; former:
曾经的；以前的：
the once capital of the nation.
该国以前的首都
at once
All at one time; simultaneously:
立刻；同时：
Everything happened at once. The view of the skyline is at once awesome, grand, and disappointing.
所有的事都一起发生了。天边立刻呈现出令人敬畏的、壮丽的和令人沮丧的景色
Immediately; instantly:
立即；马上：
Leave the room at once.
马上离开这个房间
Middle English ones
中古英语 ones
from on [one]
源自 on [一]
from Old English ³n * see oi-no-
源自 古英语 ³n *参见 oi-no-
once
[wQns]
adv.
一次
曾经; 从前
一旦; 一度
[用于否定句]一次也(不); 完全(不)
乘以一; (亲属间行辈上)小一辈; (程度上)相差无几
once a year
一年一次
a once powerful nation
曾很强盛的国家
a cousin once removed
堂[表]兄弟[姊妹]的孩子
If the facts once become known, he will be punished.
事实一旦公开, 他就要受到惩罚。
I couldn't once understand what he meant.
我完全不懂他的意思。
Once one is one.
一一得一。
once
conj.
一旦, 每当
Once you begin you must continue.
你一旦开始, 便不可停下来。
n.
一次, 一回
Once is enough for me.
对我来说一次就够了。
adj.
从前的
a once friend
从前的一个朋友
once-forbidden
adj.
一次禁戒的
once-through
n.
强制循环
all at once
突然; 同时
at once
立刻, 马上; 同时
every once in a while
[美]偶而
for this once (=for once, just for once)
就这一次; 破例一回
if once (=when once)
一旦
more than once
不止一次, 多次
not once
一次也不
once again
再一次
once and again
一再, 再三
once and away
一劳永逸; 限此一次; 断然, 爽快
once for all
一劳永逸; 永久地; 彻底地
once in a while
有时, 间或, 偶而
once more
再一次
once again
再一次
once or twice
一两次; 有时, 偶尔
once over lightly
从头到尾马马虎虎地
once too often
又(多了)一次
once
once
AHD:[w¾ns]
D.J.[wJns]
K.K.[wJns]
adv.
One time only:
once a day.
At one time in the past; formerly.
At any time; ever:
Once known, his face is never forgotten.
By one degree of relationship:
my first cousin once removed.
n.
A single occurrence; one time:
Once will have to do. You can go just this once.
conj.
As soon as; if ever; when:
Once he goes, we can clean up.
adj.
Having been formerly; former:
the once capital of the nation.
at once
All at one time; simultaneously:
Everything happened at once. The view of the skyline is at once awesome, grand, and disappointing.
Immediately; instantly:
Leave the room at once.
Middle English ones
from on [one]
from Old English ³n * see oi-no-

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