It's important that she.... to take her medicine twice a day(remember) Giúp nhanh nhất = CTRLHN

 It's important that she remember to take her medicine twice a day.

`-` S + be + adjective + ( for somebody ) + to V nguyên thể : như thế nào để làm gì

`-` Remember to V nguyên thể : nhớ để làm gì

`-` Take medicine : uống thuốc