flaw in the plan

disinterested - yī qīng rú shuǐ

Snow and frost - xuě bìn shuāng máo

descriptive of the life of a carefree hermit - gū yún yě hè

prepare for the war - shù bīng mò mǎ

burn one's bridges - yǒu jìn wú tuì

one's face glowing with health - róng guāng huàn fā

go into boiling water and walk through fire and water - tàn tāng dǎo huǒ

Swallows burn their nests - yàn chǔ fén cháo

Do business for private - yīn gōng xíng sī

go by like the wind - fēng chí diàn chěng