staple food

• n. 主食；主要粮食

例句

用作名词 (n.)

1. Sweet potato was the staple of their diet.
   过去甘薯是他们的主食。
2. Korean regards rice as staple food down the ages.
   韩国人自古以来把米饭当做主食。
3. Rice is the staple food for most Indonesians.
   水稻是印尼人的主要粮食。