關鍵字彙：
anodyne/ antidote/ antiseptic/ charlatan/ diagnosis/ dope/ drug/ efficacy/ elixir/ medication/ narcotic/ obstetrician/ overdose/ panacea/ pediatrician/ pharmacist/ prognosis/ quack/ sedative/ specialist/ therapy/ toxic/ vet
1. drug與medication：這兩個字基本上都能和medicine交互使用。但現在drug可能更常用來指海洛因、古柯鹼等一類的毒品；medication則經常用於片語on medication for（服治療…的藥）中。另外，運動員等不得使用的「禁藥」叫dope：
•This is a new drug aimed at sufferers from Parkinson's disease.
•A lot of young people start taking drugs at school.
•She is suspected of being a drug dealer.
•Certain medications can cause dizziness.
•He is on medication for high blood pressure.
•The winner was disqualified because of being proved to take dope.
2. 藥品「有毒的」叫toxic；「解毒劑」叫antidote；「消毒劑」、「殺菌劑」叫antiseptic：
•The doctor had to seek an antidote for whatever toxic substance the victim had eaten.
•There is no antidote for this toxic drug.
•Milk can serve as an antidote for some poisons.
•Antiseptic is used to sterilize the skin before giving an injection.
3. 「止痛藥」叫anodyne。但這個字經常做比喻用，指足以安慰苦悶心靈的事物：
•An anodyne can't really cure an illness.
•The trip to the countryside was an anodyne of his melancholy.
•Time is an anodyne of grief.
4. 「鎮定劑」叫sedative；「麻醉藥」、「催眠藥」叫narcotic。但這個字如果使用複數narcotics，意思則和現在的drug相近，指毒品：
•The doctor gave her a sedative to help her sleep.
•Opium is a narcotic.
•He faces three years in jail for selling narcotics.
5. 「萬靈藥」可用elixir或panacea，但panacea更常做比喻用，意為解決一切難題的良方。另外，正式用法中表示藥物的「功效」用efficacy：
•No elixir has so far been discovered to cure the inveterate disease.
•Bicycles are not a panacea for the traffic problem.
•The philosopher is seeking a panacea to cure our social troubles.
•The efficacy of the drug depends on the regularity of the dosage.
6. 「服藥過量」叫overdose；「藥劑師」叫pharmacist：
•The well-known movie star died of a drug overdose.
•Every time Mary tries to leave Tom, he threatens to take an overdose.
•The medicine dispensed by the young pharmacist worked well.
7. 「婦產科醫生」叫obstetrician；「小兒科醫生」叫pediatrician；「獸醫師 」叫vet；「專科醫生」或「主治醫師」叫specialist：
•The obstetrician reassured the pregnant woman that she would have a safe childbirth.
•The family doctor advised the parents to consult a pediatrician about their child's ailment.
•I have to take my dog to see the vet.
•Jack's uncle is a heart specialist.
8. 「庸醫」、「蒙古大夫」可用charlatan或quack：
•That new doctor was a charlatan; he couldn't tell I had a broken arm.
•Do not be misled by the exorbitant claims of this quack.
9. 醫生根據經驗所作的診斷叫prognosis；經由檢驗等正規程序所作的診斷則是diagnosis，兩個字的複數都要把-sis改為-ses。另外，不用藥物和不動手術的治療方式一般用therapy：
•If the doctor's prognosis is correct, the patient will be in a coma for at least twenty-four hours.
•Diagnosis is one of the most important parts of the doctor's work.
•The two doctors made/ gave different diagnoses of my disease.
•Marital therapy is designed to bring couples back together.
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