Unit 340 Why aren’t you eating?你為何不吃?

Unit 340 Why aren’t you eating?你為何不吃?
    Why aren't you eating?
    I am on the diet.
    I am tasting/eating sth.
    icecream cone, drool
    She is drooling.
    To be on the diet; to go on the diet
    I'm on the diet for my health.
    Because I'm overweight, I decided to go on the diet.