make one's mouth watery 垂涎欲滴

“垂涎欲滴”，汉语成语，意思是馋得连口水都要滴下来了，形容非常想吃的样子，也比喻十分羡慕，极想得到。可以翻译为“make one's mouth watery，keep a covetous eye on或drool/salivate over something”等。

例句：

约翰逊对快要到手的几百万垂涎欲滴。

Johnson was salivating over the millions he stood to make.