3-8 Eat up!
Eat up! Eat some more! Eat as much as you can . Fill up! Keep eating. You can eat more than that. Don't be polite. You can't be full! You can do better than that!
3-8 吃啊!再多吃一点!
尽量吃。尽量吃!多吃一点。你可以再多吃一点。不要客气。你不可能吃饱了!你可以再多吃一点!