勤俭

Diligence and thrift made him a possessor of warm fortunes.

勤成为富翁。

The principle of diligence and frugality applies to all undertakings.

勤节约的原则适用于一切事业。

She keeps house industriously and frugally and niggles over every detail of each bill.

她勤持家对每张账单的每一项目都细核查。