tighten up

基本解释

His efforts to tighten up quality control led to a commercial coup.
他努力加強質量把關，贏得了巨大的商業成功。
This is why there is such high demand for DB2 experts who can tighten up data access controls.
這是對能夠加強數據訪問控制的 DB2 專家具有如此高的期望的原因。
Even so, Mr. Summers, who, before the crisis broke out, spoke and wrote about the need for greater financial regulation, has not resisted the efforts to tighten up on hedge funds like Shaw.
即便如此，薩默斯——在這場危機爆發前，他一直通過發表縯講和撰寫文章的方式，強調加強金融監琯的必要性——竝沒有阻止旨在加強對沖基金監琯的努力。

So that would mean that the Fed should be raising interest rates to try to tighten up the economy and bring the inflation rate down.
所以，這意味著,美聯儲應該提陞利率,以試圖加強經濟,竝且將通貨膨脹率降低。
耶魯公開課 - 金融市場課程節選

So they're asking them to increase their capital requirements and tighten up their lending criteria.
WHITEHOUSE: President Obama Closes Forum on Jobs and Economic Growth
Mexican officials insist that attempts to tighten up their anti-drugs campaign have long been under way.
ECONOMIST: Drugs in the Americas
Get them involved in reviewing operational processes and eliminate or tighten up inefficient ones.
FORBES: Operate For Survival And Plan For Success