strike gold
US /straɪk ɡoʊld/
UK /straɪk ɡoʊld/

1.
挖到金子, 大获成功
to find something very valuable or to be very successful
:
•
The small startup really struck gold with their new app.
这家小型初创公司凭借他们的新应用真的大获成功。
•
He knew he had struck gold when he discovered the rare antique.
当他发现那件稀有古董时,他知道自己挖到宝了。