Is there any idiom that can be used to describe drooling at the sight of delicious food?

mouth watering three feet down the lips

[Interpretation] Vertical: One end of the thing is downward; Saliva: saliva. Saliva is three feet long. The original description of greed is extreme. Now it is often described as being jealous when you see other people's good things; Eager for it.

[Language] Liu Tang Zongyuan's Three Commandments: "People near the river; Get a moose; Introduction of livestock; Dogs covet; The tail and the tail are coming. "

[pronunciation] saliva; You can't pronounce "yán".

[Shape discrimination] Vertical; Can't write "spit"; Saliva; Can't write "Christmas"

drool

[antonym] Ignore like our shoes.

[Usage] It is derogatory. Accustomed to seeing other people's things and being jealous. Generally used as predicate and attribute.

[Structure] Supplementary type.

[Discrimination] ~ and "drooling"; They all describe gluttony and want to eat; Or be jealous when you see other people's things; ~ more semantic than "drooling"; Depth. "Drooling" means greed or jealousy.

Imperialists have long been interested in oil in the Gulf countries.

Cann't hide his greed