zhēng shì yòng shuǐqì, zhǔ shì zài shuǐ lǐ, jiān yòng shǎoliàng yóu, chǎo yào fāndòng

蒸是用水汽，煮是在水里，煎用少量油，炒要翻动。

Steaming uses steam, boiling is done in water, pan-frying uses a small amount of oil, and stir-frying requires stirring.