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A kind of strong drug that makes a person feel awake, , and full of energy, and takes away hunger and sleep. It is a real medicine — doctors amphetamines for some children and adults who cannot keep their attention on one thing, and for a sleeping illness called .
A kind of strong drug that makes a person feel awake, excited, and full of energy一種很強的藥物，會讓人感覺清醒、興奮、精力充沛 and takes away hunger and sleep還會讓人不覺得餓、不想睡 It is a real medicine它是真正的藥： doctors prescribe amphetamines for some children and adults who cannot keep their attention on one thing醫生會開安非他命給一些沒辦法把注意力放在一件事情上的兒童和成人 and for a sleeping illness called narcolepsy也用來治療一種叫做猝睡症的睡眠疾病
But the same drug is also used illegally, because that rush of energy feels good, so the word carries a heavy shadow: in the news it usually appears next to 'abuse', 'addiction', or 'seized by police'. It is often plural, 'amphetamines', because it is really a family of related chemicals rather than one single thing.
But the same drug is also used illegally但同一種藥也被拿去非法使用 because that rush of energy feels good因為那股突然湧來的精力感覺很好 so the word carries a heavy shadow所以這個字帶著一層沉重的陰影： in the news it usually appears next to 'abuse', 'addiction', or 'seized by police'在新聞裡它常常跟'abuse（濫用）'、'addiction（成癮）'或'seized by police（被警方查獲）'一起出現 It is often plural, 'amphetamines'它常常用複數'amphetamines' because it is really a family of related chemicals rather than one single thing因為它其實是一整個家族的相關化學物質，不是單一一種東西
Related street names you may see are 'speed' and 'meth' (, a stronger cousin). The word is medical and formal; a doctor or a newspaper says 'amphetamine', while people on the street say 'speed'.
Related street names you may see are 'speed' and 'meth'你可能會看到的相關街頭稱呼有'speed'和'meth' (methamphetamine, a stronger cousin)(methamphetamine，一個更強的近親) The word is medical and formal這個字是醫學、正式的用語： a doctor or a newspaper says 'amphetamine'醫生或報紙會說'amphetamine' while people on the street say 'speed'而街頭的人會說'speed'
Note that the danger is not only the drug — people take it to study all night or to work longer, and it hides how tired the body really is.
Note that the danger is not only the drug要注意，危險不只是藥本身： people take it to study all night or to work longer人吃它是為了熬夜讀書或工作更久 and it hides how tired the body really is而它會掩蓋身體其實有多累
組成A chemist's word, built from pieces of the chemical's long scientific name — roughly 'alpha-methyl-phenethylamine' squeezed down to amphetamine. So the parts are not English word-parts you can reuse; they are labels for bits of the molecule.
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
amphetaminenoun/æmˈfɛt.ə.miːn/
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chemistrynatural-sciencesorganic-chemistryThe racemic freebase of 1-phenylpropan-2-amine; an equal parts mixture of levoamphetamine and dextroamphetamine in their pure amine forms.
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informalAny mixture of the two amphetamine enantiomers, dextroamphetamine and levoamphetamine.
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informalReferring to a substituted amphetamine; a member of the amphetamine class of chemicals.
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medicinepharmacologysciencesA potent central nervous system stimulant of the phenethylamine chemical class that is used to treat ADHD, narcolepsy, and obesity.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。