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A Seabee is a person in a special part of the United States Navy whose job is to build. They make landing places for planes, roads, harbours, and other things a fighting force needs — often in rough places, or right where there is fighting, or after a storm. The official name of the unit is the Construction Battalion. The letters CB are the start of that name; if you say C-B out loud, it sounds like “Seabee”, and people began to write it that way. The spelling also makes you think of the sea (the Navy works on the sea) and a bee (a busy worker). It is a US military nickname, always with a capital S. You will meet it in news and history, not in everyday talk in Taiwan. A Seabee is not “any sailor”, and not a kind of insect.
海蜂（美國海軍工程部隊的暱稱；正式名稱是 Construction Battalion）
組成把 Construction Battalion 的縮寫 CB 照讀音拼出來。拼法大概也受到 sea（海軍的海）和 bee（勤勞的蜜蜂）影響。不是 sea + bee 合成的普通複合詞。
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。
Seabeenoun
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governmentmilitarypoliticsA construction battalion of the United States Navy, responsible for building, bulldozing, etc.
- The Navy is establishing a new Construction Battalion, or Seabee, unit in Charleston, S. C., Senator Strom Thurmond, Republican of South Carolina, said today.
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A member of this force.
- The Sixty-third Naval Construction Battalion, 15 per cent of which is composed of World War I veterans, arrived here today. The group, which includes 741 Seabees, will be processed for thirty-day leaves before reassignment, the Navy announced.
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。