jǐ shí nián
several tens of years
several decades
sān shí nián lái
for the past thirty years
shí nián shù mù , bǎi nián shù rén
It takes ten years to nurture a tree, but a hundred years to train a man (idiom). A good education program takes a long time to develop.
yī zhāo bèi shé yǎo , shí nián pà jǐng shéng
once bitten by a snake, ten years in fear of a well rope
once bitten, twice shy (idiom)
èr shí nián mù dǔ zhī guài xiàn zhuàng
The strange state of the world witnessed over 20 years, novel by late Qing novelist Wu Jianren 吳趼人, classified as "novel of denunciation" 譴責小說|谴责小说
yī nián bèi shé yǎo shí nián pà jǐng shéng
bitten by a snake in one year, fears the well rope for ten years (idiom); once bitten twice shy
Èr shí Nián Mù dǔ zhī Guài Xiàn zhuàng
The Strange State of the World Witnessed Over 20 Years, novel by late Qing novelist Wu Jianren 吳趼人|吴趼人[Wu2 Jian3 ren2]
shí nián shù mù , bǎi nián shù rén
It takes ten years to nurture a tree, but a hundred years to train a man (idiom). A good education program takes a long time to develop.
jūn zi bào chóu , shí nián bù wǎn
lit. for a nobleman to take revenge, ten years is not too long (idiom)
fig. revenge is a dish best served cold
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