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A beta-blocker is a kind of medicine. It blocks certain “beta” signals in the body, especially around the heart and blood vessels, so the heart beats more slowly and with less force. Doctors give it after a heart attack, and also for high blood pressure, some irregular heartbeats, shaky hands, migraine, and even stage before a concert — though actually the public often hears only the heart-attack story. It is a whole family of drugs, not one brand. In ordinary talk nobody the “beta”; it is just the name of the drug class. The is usual: beta-blocker.
乙型阻斷劑（台灣醫院說法；中國大陸較常說「β受體阻滯劑」）
組成beta (the kind of body signal it targets) + blocker (it blocks that signal)
同家族的字
- blockthe drug blocks a kind of signal in the body
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。
這個拼法也被記錄為下列字的變化形：
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。