plain food meaning in Chinese

普通的食品

From morning till late at night , except at the times when he partakes of the very plainest food , he is working at science
从清早直至深夜，除开吃便饭花费一些时间而外，其他时间全部用来钻研科学。
Eat to contain much in the foods , such as the pit many plain food milks , lean meats , cheeses in huang and egg . . . etc . rich contain to check a yellow vegetable , it can promise eyes see the normal metabolism of retina and cornea , strengthening the vitality of eyes
多吃含核黄素多的食物牛奶、瘦肉、干酪、鸡蛋等食物中富含核黄素，它能够保证眼睛视网膜和角膜的正常代谢，增强眼睛的活力。