正如前面提到的，断言用来确保有效状态。

Assertions are used to ensure valid states, as previously mentioned.

youdao

与其他职能部门合作，确保有效的部门相互沟通和支持；

Work with other departments and functions to ensure effective interfaces and support.

youdao

确保有效的运作计划和流程来支持订单的履行和交货要求。

Ensure an effective operation planning and process to support the order fulfillment and delivery requirement.

youdao

So, you want to give it to them because the biology of children is different than adults, and so you need to make sure it works in that population.

你希望将疫苗分发给孩子们,因为儿童与成人在生物学上不尽相同,要确保疫苗对儿童有效

耶鲁公开课 - 生物医学工程探索课程节选