讲解

Today's key word is Standard

A standard is something that you use in order to judge the quality of something else。
标准，水平。

Here's an example：

What's your standard of choosing a boyfriend?

你找男朋友的标准是什么？

延伸：

Now, let’s back to the point.
A recent report says that China has published new standards of Yuesao.
It says that Yuesao has to be between 18 to 55 years old. And they need to have received at least middle school education.
No criminal records
The top level or the so called Gold medal Yuesao has to meet the standards such as:
- With the certification and training of
Advanced Nursery Teacher, and Senior Nutritionist.
-have the capability of provide psychological
service to the mother
-help the mother to do fitting physical
exercises
-be very familiar with the common baby
infections and illnesses