这个新游戏应用很快成为了公司的摇钱树。

This new game app quickly became the company's top ___money-maker.

他凭借敏锐的商业嗅觉，成为了家族企业中最出色的赚钱能手。

With sharp business acumen, he became the top ___money-maker in the family business.

作为一名泳装模特，她引以为傲的腹肌就是她的主要赚钱资本。

As a swimsuit model, her toned abs are her main ___money-makers.