垂涎三尺的英语:spittle three feet long -- drool with envy; bring the water to sb.'s mouth; cannot hide one's greed; cast a covetous eye at sth. [on ...]; cast greedy eyes at; make sb's mouth water; mouth...
垂涎三尺的法语:en baver d'envie;regarder qch d'un œil de convoitise;l'eau lui vient à la bouche