a cash cow

含义

a reliable source of profit

稳定的赚钱来源.

例句

1. 1The parking business became a cash cow, earning steady profits with little extra investment.
2. 2They used their most reliable product as a cash cow to fund new research.
3. 3That old software is a cash cow: yearly subscriptions still generate enormous profits.
4. 4Why close a cash cow that earns enough to support the entire business?
5. 5The rental property is a cash cow, generating reliable monthly profits rather than sitting idle as a reserve.

语法

可数名词短语。单数时要加冠词，复数时 cow 变为 cows。

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