medicine什么情况下用复数 youmusttakethemedicine中文意思?
youmusttakethemedicine中文意思?you must take the medicine 你必须吃药 medicine 英[medsn] 美[
medicine与drug的区别 taken是什么时态?
taken是什么时态?完成时态如:  The police have taken out a summons against the driver of the