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Flask usually means one of a few kinds of container. A hip flask is a small, flat metal bottle people use to carry a small amount of alcohol, often in a pocket. A lab flask is a glass container, often with a narrow neck, used in science experiments. And in British English, a 'flask' (or ' flask') is a container that keeps a drink hot or cold for hours — Americans usually just call this a '.'
（隨身）扁酒瓶；（實驗室）燒瓶；（英式）保溫瓶
原始詞典資料8 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。
flasknoun/ˈflɑːsk/
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A narrow-necked vessel of metal or glass, used for various purposes; as of sheet metal, to carry gunpowder in; or of wrought iron, to contain quicksilver; or of glass, to heat water in, etc.
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A container used to discreetly carry a small amount of a hard alcoholic beverage; a pocket flask.
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sciencesLaboratory glassware used to hold larger volumes than test tubes, normally having a narrow mouth of a standard size which widens to a flat or spherical base.
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engineeringnatural-sciencesphysical-sciencesA container for holding a casting mold, especially for sand casting molds.
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A bed in a gun carriage.
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A nuclear flask, a large, secure lead-lined container for the transport of nuclear material.
- Over the years, the railway has been the safest way to move hazardous chemicals, radioactive waste, fuel for Royal Navy nuclear submarines and imported fuel for reprocessing, as well as flasks containing fuel rods to and from British power stations.
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A small bottle of liquor.
flaskverb/ˈflɑːsk/
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dentistrymedicinesciencesTo invest a denture in a flask so as to produce a sectional mold.
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。