Limit free consultations to 30 minutes, then let them know that you're happy to keep talking and you'll invoice them for any additional time.

比如把免费咨询时间定在30分钟以内，然后告知他们，你很愿意继续交谈，并会就超出的时间开出收费清单。

youdao

Limit free consultations to 30 minutes, then let them know that you're happy to keep talking and you'll invoice them for any additional time.

比如把免费咨询时间定在30分钟以内，然后告知他们，你很愿意继续交谈，并会就超出的时间开出收费清单。

youdao