Definition: a promise Level: C1
经理保证所有问题都会迅速解决。
The manager offered an ___assurance that all issues would be resolved promptly.
我们收到政府的保证，政策不会改变。
We received ___assurances from the government that the policy would not change.
她支持的保证对团队的士气至关重要。
Her ___assurance of support was crucial for the team's morale.
