a source of continuous wealth or profit
継続的な富または利益の源 (keizokuteki na tomi mata wa rieki no minamoto)
"Their subscription service has become a golden goose for the company."
"彼らのサブスクリプションサービスは会社にとってa golden gooseになった。" (karera no sabusukuripushon sābisu wa kaisha ni totte a golden goose ni natta)
to pay a very high price for something
to act in an honest and open manner
take advantage of a good situation while it lasts
to help someone with a task
a series of events triggered by one event
when the situation becomes very difficult or challenging