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Simplfied Chinese
一旦
Traditional Chinese
一旦
Mandarin pinyin pronunciation
yī dàn
Cantonese jyutpin pronunciation
yat1 daan3
Short definition if
Usage frequency Very common
Chinese synonyms Chinese Gratis iconChinese tools icon (Click icons, results will appear below)
 
All available English definitions in case (something happens)Adso icon / in one dayLDC iconMDBG icon / once (sth happens, then...)MDBG icon / once (something becomes true, then...)LDC icon / whenMDBG icon / in a short timeMDBG icon / ifMDBG icon/
Copyleft icon Adso icon Adso: in case
Copyleft icon Cantofish icon Cantofish: samemdbg
Copyleft icon MDBG icon MDBG: in case (sth happens); if; once (sth happens, then...); when; in a short time; in one day
Copyleft icon LDC icon LDC: in case (something happens); once (something becomes true, then...); in one day
Copyleft icon Cdict icon CDict: sameldc'
Click icons for complete source definitions (not available on mobile). Copyleft icon icon in each entry gives source attribution.
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Sentence examples
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一旦(yī dàn) if
爆发(bào fā) to break out
核战争(hé zhàn zhēng) nuclear war
(shòu) pleasant
苦的(kǔde) stewed
将会(jiāng huì) will (cause)
(shì) is
全人类(quán rén lèi) all peoples

All humanity will suffer if a nuclear war breaks out.

坏习惯(huài xí guàn) bad habit
一旦(yī dàn) if
(bèi) quilt
养成(yǎng chéng) to raise
便(biànbiàn pián) so
不能(bù néng) to be unable
简单地(jiǎn dān di) simply
改正(gǎi zhèng) to amend

Once you've formed a bad habit, you can't get rid of it easily.

这个(zhè gè) this one
进程(jìn chéng) process
一旦(yī dàn) if
开始(kāi shǐ) to begin
我们( men) us
能在( néng zài)
一小时(yī xiǎo shí) one hour
(nèi) within
得到(dé dào) to get
结果(jié guǒ) outcome

Once this process is started, we can get the result within one hour.

中国(zhōng guó) China
(shì) is
一只( yī zhǐ)
沉睡(chén shuì) to slumber
(dedì) of
狮子(shī zi) lion
一旦(yī dàn) if
觉醒(jué xǐng) arousal
将会(jiāng huì) will (cause)
震惊世界( zhèn jīng shì jiè) to stun the world

China is a sleeping tiger, but once it wakes up, it will shock the world.

一旦(yī dàn) if
养成了(yǎng chéng le) to cultivate
坏习惯(huài xí guàn) bad habit
(jiù) only
很难(hěnnán)
改回来(gǎihuílái)
(liǎo) (of eyes) bright

A bad habit, once formed, is difficult to get rid of.

(nǐ) variant of 你, you (female)
一旦(yī dàn) if
不做(búzuò)
(gè) variant of 個个ge4
乖孩子(guāi hái zǐ) poppet
圣诞老人(shèng dàn lǎo rén) Santa Claus
就不会(jiùbúhuì)
(lái) next
([missing]) Oh

As soon as you start misbehaving, Father Christmas will not come to see you.

他的( tā de)
人缘(rén yuán) popularity
向来(xiàng lái) all along
很好(hěn hǎo) well
因此(yīn cǐ) thus
一旦(yī dàn) if
遭遇(zāo yù) to suffer
急难(jí nàn) crisis
朋友(péng you) friend
(dū) all
乐意(lè yì) content
帮忙(bāng máng) to lend a hand

He is very popular, so whenever you find yourself in trouble, his friends will be happy to help.

一旦(yī dàn) if
捡到(jiǎn dào) to pick up
一颗( yī kē)
(nǐ) variant of 你, you (female)
喜欢(xǐ huān) to like
(dedì) of
石头(shí tou) stone
尽快(jǐn kuài) with all speed
将它( jiāng tā)
带回家
(bìng) and
好好(hǎo hǎo) good
对待(duì dài) to treat
(tā) it (used for animals)
因为(yīn wèi) because
那是(nà shì) indeed
(nǐ) variant of 你, you (female)
唯一(wéi yī) only
得到(dé dào) to get
(dedì) of
石头(shí tou) stone

Once you've picked up a stone that you like, take it home as soon as you can and treat it well, because that's the only stone you've got.

一旦(yī dàn) if
过了(guòle)
(hé) river
你就( nǐ jiù)
安全(ān quán) secure
(liǎo) (of eyes) bright

Once across the river, you are safe.

Example sentences courtesy Tatoeba project.Copyleft icon
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