好胃口的英文：
hearty appetite

参考例句：

Have a hearty appetite
有好胃口

I am blessed with a good appetite
我享有好胃口的福气。

I ate my scrambled eggs and bitter marmalade with the zest which in youth follows a restless night
我带着一夜没睡的青年人的好胃口吃着炒鸡蛋和苦味的果酱。

hearty是什么意思：
adj. 衷心的；健壮的；精神饱满的；丰盛的；猛烈的

He was upright, hearty, and robust.
他身材笔直，精神饱满，体魄壮。

Heave ho, my hearties!
伙伴们，用力呀！

He exclaimed, with assumed heartiness.
他叫着，现出假装的热心。

He prepared a hearty dinner for us.
他为我们准备了一顿丰盛的晚餐。

We'll have something hearty for you to eat.
我们还要给你做点好吃的呢。

appetite是什么意思：
n. 肉体的欲望，食欲；自然的欲望

I have a famous appetite.
我胃口极好。

A good appetite is a good sauce
饥不择食

Appetite comes with eating
食欲越吃越旺

Appetite comes with eating.
胃口越吃越大。

How 's your appetite lately? (I have lost my appetite.)
你近来的食欲怎么样(我丧失了食欲)