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A sidekick is the person who spends time with someone more important, and helps them. The hero has a sidekick; the boss has a sidekick.
A sidekick is the personSidekick 指的是那個人，who spends time with someone more important陪在比較重要的人身邊，and helps them並幫助他們。 The hero has a sidekick主角有 sidekick，the boss has a sidekick老闆也有 sidekick。
It is informal, and a little teasing — it can sound warm (a loyal friend) or a bit small (the , not the star). In comics and films the sidekick is almost a job: Robin is Batman's sidekick. You would not put it on a serious office door.
It is informal, and a little teasing這是口語用字，帶點打趣的意味——it can sound warm (a loyal friend)可以聽起來很溫暖（忠心的朋友），or a bit small (the helper, not the star)也可以聽起來有點矮化（只是幫手，不是主角）。 In comics and films the sidekick is almost a job在漫畫和電影裡，sidekick 幾乎是一種職位：Robin is Batman's sidekickRobin 就是 Batman 的 sidekick。 You would not put it on a serious office door你不會把這個字寫在正式的辦公室門牌上。
The kick is not a kick with the foot. In the late 1800s and early 1900s, kick was slang for a trouser pocket, and the side pocket was the safest one, closest to you. A sidekick was your closest person, the one you keep near. That slang has died; the word stayed.
The kick is not a kick with the footSidekick 裡的「kick」不是用腳踢的那個 kick。 In the late 1800s and early 1900s在1800年代晚期到1900年代初期，kick was slang for a trouser pocketkick 是褲子口袋的俚語，and the side pocket was the safest one而側邊的口袋是最安全的，closest to you離你身體最近。 A sidekick was your closest personSidekick 原本是指你最親近的人，the one you keep near你會一直留在身邊的那個人。 That slang has died那個俚語意思已經消失了，the word stayed但這個字留了下來。
組成From side + kick. In the late 19th and early 20th century, kick was slang for the front side pocket of a pair of trousers, known as the pocket safest from theft. By analogy, a side-kick was a person's closest companion.
原始詞典資料2 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。
sidekicknoun/ˈsaɪdkɪk/
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informalAn assistant to another person, especially to a superior or more important person.
- In the abstract, Stuhlbarg’s twinkly-eyed sidekick suggests Joe Pesci in Lethal Weapon 2 by way of late-period Robin Williams with an alien twist, but Stuhlbarg makes a character that easily could have come across as precious into a surprisingly palatable, even charming man.
- If representation and recruitment is an objective, self-styled mavericks like Kelly and his Queensland sidekick George Christensen have some utility.
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authorshipbroadcastingcommunicationsIn literature, theatre, etc., a good foil of the protagonist, a character who helps emphasize the traits of the main character.
- So even though he had – no question – the best lines in Friends, he was never what he would have been in an earlier era: the sidekick.
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。