釋義： mouth 嘴巴的意思，watering，流口水；字面來看是嘴巴流口水，in English， Having one's appetite enticed. 令人垂涎的 來源： This expression is simple enough: 這個俚語很簡單The 'water' is not actually water, but saliva that your body will produce when you eat something.這里提到的water實(shí)際不是水，而是當(dāng)我們吃東西時候身體產(chǎn)生的唾液 Sometimes, a person can start this extra saliva production by just thinking about food. 有時候，人們在想到食物的時候就會開始產(chǎn)生唾液Thus, when food is on the mind, a person 'waters' at the mouth.因此，當(dāng)想到食物時，一個人的嘴巴就會濕； 舉例： On the way home, I had the imagination of much mouth watering food on the table. 在回家的路上，我幻想著滿桌的可口飯菜。 You can see his mouth watering, let's start to eat right now. 看他那垂涎欲滴的樣子，快開始吃飯吧。