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Umbilical relates to the umbilical cord — the tube connecting a baby to its mother before birth, carrying food and oxygen. After birth this cord is cut, leaving the belly button. The word is also used more broadly and technically for any cord or cable that supplies something essential, especially in engineering — like the 'umbilical cable' connecting a or spacecraft to its life-support system.
臍帶的；(引申)供應用連接線(工程用語)
組成from Latin 'umbilicus,' meaning navel (belly button)
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。
umbilicaladj/ʌmˈbɪ.lɪ.kəl/
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anatomymedicinesciencesOf, or relating to, the navel (umbilicus) or the umbilical cord.
- One womb, one shame, one resolve ¶ Liberate this will to release us all ¶ Gotta cut away, clear away ¶ Snip away and sever this umbilical residue ¶ Keeping me from killing you
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mathematicssciencesSuch that the curvatures of normal sections are all equal to each other.
umbilicalnoun/ʌmˈbɪ.lɪ.kəl/
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aerospaceastronauticsbusinessA cord connecting an astronaut to a spacecraft, or a craft to ground control prior to launch, etc.
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。