lick / smack your lips
(尤指在吃好东西前)舔嘴唇
to move your tongue over your lips, especially before eating sth good
lick / smack your lips口语
迫不及待;渴望
to show that you are excited about sth and want it to happen soon
They were licking their lips at the thought of clinching the deal.他们一想到马上要做成这笔交易就显得急不可待了。
释义来自《牛津高阶英汉双解词典》第 9 版