如何帮助我们购买方法一类在运行时，虽然？

How does that help us add methods to a class at runtime, though?

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无知天真的购买方法只会让你更容易上销售人员销售策略的当，花更多的钱。

A wide-eyed approach can also leave you more susceptible to a salesperson's tactics to get you to pay more than you should.

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备用市场研究主要解决市场交易规则和确定备用服务的购买方法，以保证备用市场交易的正常稳定运行。

The key problems in electric reserve market are how to establish market trading rules and determine procurement method, so as to ensure the reliable operation of the reserve market.

youdao

People in a profession over the years learn more and more about how to manage the public's expectations and get them to actually purchase insurance.

随着时间的推移,从事这一行的人们,掌握了越来越多的迎合公众期望的方法,并最终说服他们购买保险

耶鲁公开课 - 金融市场课程节选