A prescription is the piece of paper on which your doctor writes an order for medicine and which you give to a chemist or pharmacist to get the medicine.
例句
You will have to take your prescription to a chemist.你得拿著處方去找藥劑師。
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處方藥
A prescription is a medicine which a doctor has told you to take.
例句
The prescription Ackerman gave me isn't doing any good.阿克曼給我開的藥沒有任何療效。
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對策；解決方案
A prescription is a proposal or a plan which gives ideas about how to solve a problem or improve a situation.
例句
...the economic prescriptions of Ireland's main political parties.愛爾蘭主要政黨的經濟對策