the first pot of gold,直译即可。因为中文“第一桶金”即来自英文。动词用make。
例句:He made his first pot of gold in 1990.
字面翻译为: the first pailful of gold
或者意译为: the first-won profit
The first earn
鄙人偏向意译
the first-won profit
第一桶金
First Pot of Gold
http://www.myfirstpotofgold.com/main.asp
http://scholar.ilib.cn/Abstract.aspx?A=gjrz200102011