“一剂”用英语怎么说？

一剂好的补品将有助于身体康复。A good dose of tonic will help you to pick up.她服用了一剂蓖麻油，已经上床睡了。She has gone to bed and had a dose of castor oil.按摩是舒缓压力的一剂妙方。Massage is a wonderful antidote to stress....