"让什么吃" 用英语可以说成 "feed something" 或 "give something to eat." 这个短语的来源是来自于英语动词 "feed," 意思是 "喂养, 为...提供食物."

下面是一些例句:

Can you feed the cat while I'm away? (你能在我不在的时候喂一下猫吗？)
I'll feed the baby as soon as I get home. (我一回家就会给宝宝喂奶。)
The farmer feeds the cows twice a day. (农夫每天喂两次牛。)

同样地, 你还可以用 "give something to eat" 表示 "让什么吃" 的意思:

Could you give the dog some food? (你能给狗喂点食物吗？)
I'll give the plants some water after I feed the fish. (我喂完鱼后就会给植物浇水。)
She gave the baby a bottle of milk. (她给了婴儿一瓶牛奶。)