appetite

名词 appetite:

1. a feeling of craving something- Granville Hicks
   同义词：appetency, appetence

1. There's nothing to touch mountain air for giving you an appetite.
   再也没有比山间清新的空气更能促进食欲的了。
2. Why don't you go for a walk? It'll give you an appetite for your lunch.
   你怎麽不出去散散步? 散散步午饭时就有食欲了。
3. The long walk gave him a good appetite.
   长时间的走路使他食欲旺盛。
4. She is suffering from lack of appetite.
   她食欲不振。

ap.pe.tite

n.（名词）
An instinctive physical desire, especially one for food or drink.
食欲：一种本能生理欲望，尤指对食品或饮料
A strong wish or urge:
强烈的愿望，迫切的要求：
例句：
an appetite for learning.
学习的强烈愿望

来源：
Middle English apetit
中古英语 apetit
from Old French
源自 古法语
from Latin appetotus [strong desire] [from past participle of] appetere [to strive after]
源自 拉丁语 appetotus [强烈欲望] [] 源自appetere的过去分词 [为…奋斗]
ad- [ad-]
ad- [前缀，表示.临近.]
petere [to seek] * see pet-
petere [寻找，尝试] *参见 pet-

【引伸】
ap.peti.tive