Offer a special deal, extra service or a lower price during your trial/introductoryperiod.
在此期间提供优惠，额外的服务或者低价。
2
However, we will announce the end of the introductoryperiod at least two weeks ahead of time so that nobody is caught by surprise.
然而，我们将宣布的入门的时间至少提前两周结束后，没有人感到惊讶。
3
Parents I interviewed did not understand the introductoryperiod without explanation and were reluctant to try the service without knowing how much the service was going to cost.