If Jenny makes 3,300 USD a month at Widgets, Inc. and her side-hustle is making a profit of 2,000 USD a month, she's probably in a safe position to give her two weeks notice.
如果 Jenny 一個月在機械工廠薪水為 3,300 美元 (約 99,000 台幣),而她副業一個月賺 2,000 美元 (約 6 萬台幣),那她或許就可以考慮把副業轉正。