他用皮带紧紧系住了背包。

He ___cinched his backpack tightly with a belt.

她的完美演讲确保了这次升职机会。

Her flawless presentation ___cinched the promotion opportunity.

她在腰间系紧腰带，让裙子更合身。

She ___cinched the belt around her waist to make the dress fit better.