主食

yàn mài shì píng mín bǎi xìng de zhǔ shí

燕麦是平民百姓的主食。

Oats were the staple food of the common people.

mǐ fàn shì lǎo bǎi xìng de zhǔ shí

米饭是老百姓的主食。

Rice formed the staple food of the common people.

zhōng guó rén dà dōu yǐ mǐ wéi zhǔ shí

中国人大都以米为主食。

The Chinese live largely on rice.