yí dàn
n./adv. a single day, a very short time; once, in case
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Simplified stroke orders are based on the 'Standard of National Commonly-used Mandarin Chinese Characters (现代汉语通用字笔顺规范)', issued by the China National Language and Character Working Committee (国家语言文字工作委员会) on April 7th 1997. Traditional stroke orders are based on information issued by the Taiwan Ministry of Education.
EXAMPLES
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yí dàn ní zhǎng wò le yào lǐng , zhè ge wèn tí jiù bù nán le .
phr. Once you get the main points, this problem is no longer difficult for you.
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dāng tā yí dàn xǐng wù guò lái , huì jué de hòu huǐ de .
phr. Once he wakes up to reality, he will regret his actions.