英语热门查询
daddyferventelectrodetripeenlistmentaccompaniedyrbradleyrescuerPassoveronionskinmuslinfoulperegrinescallopcompetitivenessofflinegatewaytardymoldyillusionaryironichaltingpistilblesseddroguethenardaubclogpropagateskittishtranquilliseguckhitmanblahimpetuoussequesteringpenuryplummetinvariantderogategotmigrateSpecificityfundedarresteddesigncrawlerbleepwrest
once/
w^ns
/
1.adverb
(one time only) 一次
2.adverb
(at one time) 曾经
Texas was once ruled by Mexico.
德克萨斯州曾经受墨西哥管辖。
3.adverb
(on one occasion) 有一次
I went to Portugal once.
我去过一次葡萄牙。
4.conjunction
(as soon as) 一旦
at once
立刻
5.conjunction
(simultaneously) 同时
once a {or} every month
每月一次
once more {or} again
再一次
once and for all
一劳永逸地
once upon a time
很久以前
6.conjunction
(in the past) 从前
once in a while
偶尔
all at once
突然
for once
就这一次
just this once
[inf] 就这一次
once or twice
一两次