feeding 供养
to feed 供养
to nourish 养育
to maintain 赡养
subsistence 生活
nutrition 营养
to eat 吃
to drink 喝
to chew 嚼
to swallow 吞咽
to nibble, to peck 细嚼
appetite 胃口
hunger 饥饿
thirst 口渴
to be hungry 饿
to be thirsty 渴
gluttony 暴食
greed 贪嘴
overfeeding 吃得过多,过量食物
fasting 禁食
diet 食物，饮食