A service architecture needs to be defined at three levels.

一个服务架构需要在3个级别定义。

youdao

All interface qualifiers can be applied at three levels of a component.

所有接口限定符都可以应用于组件的三个级别。

youdao

The study rated understanding at three levels: basic, proficient and advanced.

研究从三个层次理评估理解能力，基本，专业，高级。

youdao

Ted Bloomberg, who heads up education for TD Ameritrade, thinks about investor education at three levels: providing basic information (what is a stock, what is a bond type stuff), followed by further engagement with tutorials and ultimately in-depth training with coaches or teachers.

FORBES: The Best Ways To Learn About Investing

"We are coordinating at the three levels of governments and security with the presidential guard, " Martinez said.

CNN: Mexico spends millions to greet pope

But Oracle is the only company in the entire tech industry that offers services at all three levels: applications, infrastructure, and platform.

FORBES: Oracle Disrupts Cloud Industry with End-to-End Approach