提供一个可供订阅者选择会问数量有限的信息如：名字,邮寄地址和电子邮件地址的能力

The ability to offer an opt-in form for subscribers that would ask them for a limited amount of information such as: Name, mailing address, and email address.

youdao

“为什么红腹滨鹬的数量突然减少？”威尔考乌问。

"Why the sudden drop in Numbers?" asks Wilcove.

youdao

问：运行应用程序所需CPU的最小数量和最大数量是多少？

Q: What's the minimum and maximum number of CPUs I need to run my applications?

youdao

So, you might ask then well what is the significance of shooting different amounts of photons at a metal?

所以，你们可能会问向,金属发射不同数量的光子,有什么重要性？

麻省理工公开课 - 化学原理课程节选