你要先考虑清楚，免得吃后悔药。

Think it over before you go so that you won't regret it later.

城市老鼠：但是那很难吃后悔药啊。

City Mouse: but they taste terrible.

别怕把这个让医生检查一下–以免吃后悔药！

Don't be afraid to have this checked by a doctor – better safe than sorry!