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To handcuff someone is to lock metal rings around their wrists so they cannot use their hands freely. Police do this when they arrest a person. The usual pattern is to handcuff a person, not to handcuff the wrists, though that is where the rings go. The verb sounds a little like news or official speech; in everyday talk officers might just say cuff. Though actually, writers also stretch it: a government handcuffed by rules cannot act freely. That is a picture, not real metal.
銬上手銬
組成From hand + cuff (the end of a shirtsleeve). There was an Old English word handcops, from hand + cops (fetter, chains), and later Middle English handcops, but scholars generally treat the modern word as a new making of hand + cuff, because too many centuries sit between. The noun shows up around 1591; this verb around 1649.
原始詞典資料3 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。
handcuffnoun/ˈhændˌkʌf/
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rareOne ring of a locking fetter for the hand or one pair.
handcuffverb/ˈhændˌkʌf/
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To apply handcuffs to someone.
- The sheriff had brought along all the handcuffs necessary, and in a few seconds he had handcuffed Koswell. He threw a pair of the steel bracelets to Dick and another pair to Tom, and the Rovers had the satisfaction of handcuffing Josiah Crabtree and Tad Sobber. Then the sheriff made prisoners of the rest of the crowd[…]
- The sheriff’s office released a compilation of bodycam footage Friday from deputies at the scene that shows them handcuffing Earl and pinning him down for more than 20 minutes as he struggles and repeatedly shouts for help.
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to restrain or restrict.
- Dang, I’m handcuffed by these regulations. I’d like to help but it’d be illegal.
- After all, since our marriage has proved a childless one, the only reason for our submitting to be handcuffed to one another, now that our hearts are no longer in the arrangement, is gone.
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。