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Nitroglycerine is a heavy, liquid with two very different lives. Miners and builders of the old days knew it as a powerful explosive — bump it, and it can go off. Alfred Nobel mixed it with a kind of earth so it would not explode just from being moved; that mix is dynamite. Doctors know a tiny bit of the same chemical as a heart medicine. It makes the small tubes that carry blood a little wider, so a tight pain in the chest can ease. You may see a tablet that goes under the tongue. Though actually it is the amount that changes everything: a drop that breaks rock, and a crumb that helps a heart. The British spelling keeps the e: nitroglycerine. American spelling often drops it: nitroglycerin. Same stuff. You will meet it in history, chemistry, and hospital talk, not in everyday chat.
硝化甘油（炸藥；也可作心臟藥，常為舌下含片。醫院有時也說硝酸甘油。）
原始詞典資料1 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。
nitroglycerinenoun
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chemistrynatural-sciencesorganic-chemistryThe compound glyceryl-tri-nitrate or 1,2,3 tri-nitrooxy propane; the ester of glycerol with nitric acid; prepared by the careful addition of a mixture of nitric and sulphuric acids to glycerol with constant stirring and cooling; it is a thick, pale yellow liquid, that is highly explosive on concussion or on exposure to sudden heat; it is used in medicine as a vasodilator, and as an explosive in the form of dynamite which is safe to handle.
- Holonym: dynamite
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。