1) How often do I have to take this medicine ?
多久吃一次药？
2) How often do I need to take this?
隔多久服一次药?
3) Take this medicine hourly.
每小时吃一次药。
4) Please take a spoonful of the medicinal liquid each time.
每次请吃一匙药。
5) Take the medicine twice a day.
这药一天吃两次。
6) How often there?
多久去那里一次?
补充资料：多久
1.指一段时间。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条