àn zhōng
adv. in secret, in the dark, by stealth, on the sly, surreptitiously
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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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tā men àn zhōng cè huà le zhè cì zhèng zhì yīn móu .
phr. Their political intrigue was hatched on the sly.
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tā àn zhōng gēn zōng qī zi , què shén me yě méi yǒu fā xiàn .
phr. He stalled his wife in secret but finally found nothing.