Tā yīgè rén dāngjiā, bǎ jiālǐ dǎlǐ de jǐngjǐng-yǒutiáo.
She runs the household single-handedly and keeps everything in order.
Tips
usage
当家 literally means to 'be the family head.' It extends to any context of being in charge - a business, a group, or a country. The proverb 不当家不知柴米贵 (you don't know the price of rice until you run the household) captures its essence.
