吃不够，意思是说可能是煮的食物太少了，而它的饭量也比较大，一般情况就是没有吃饱的意思。或者是说这道菜做的太好吃了，总是吃不够。
不够吃 双语例句
1. 以为它吃不够，故意把它分开放正另一个aquarium内别点鱼粮让它吃，今天早上放回原处
Thought this poor fish didn't eat much, so I separated it from another aquarium and put a bit fish food inside, put it back to the same aquarium with another healthy fish this morning
2. 我认为仅仅吃牛奶和谷类食物是不够的。
I don't think only milk and cereal is enough.
