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A cylinder is a solid or hollow shape like a tube or a can — it has two flat, round ends and straight sides. Tin cans, some water bottles, and are all cylinder-shaped. In cars, 'cylinders' are the tube-shaped parts inside the engine where fuel burns to make the car move — that's why you'll hear about 'a four-cylinder engine' or 'a six-cylinder engine,' meaning the engine has that many of these parts.
圓柱體（形狀）；汽缸（引擎部件）
組成From Greek 'kylindein,' meaning to roll.
原始詞典資料10 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。
cylindernoun/ˈsɪlɪndə(ɹ)/
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geometrymathematicssciencesA surface created by projecting a closed two-dimensional curve along an axis intersecting the plane of the curve.
- When the two-dimensional curve is a circle, the cylinder is called a circular cylinder. When the axis is perpendicular to the plane of the curve, the cylinder is called a right cylinder. In non-mathematical usage, both right and circular are usually implied.
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geometrymathematicssciencesA solid figure bounded by a cylinder and two parallel planes intersecting the cylinder.
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Any object in the form of a circular cylinder.
- A big greyish rounded bulk, the size, perhaps, of a bear, was rising slowly and painfully out of the cylinder.
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A cylindrical cavity or chamber in a mechanism, such as the counterpart to a piston found in a piston-driven engine.
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automotivetransportvehiclesThe space in which a piston travels inside a reciprocating engine or pump.
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A container in the form of a cylinder with rounded ends for storing pressurized gas; a gas cylinder.
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An early form of phonograph recording, made on a wax cylinder.
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The part of a revolver that contains chambers for the cartridges.
另外 1 個記錄的用法
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computingengineeringmathematicsThe corresponding tracks on a vertical arrangement of disks in a disk drive considered as a unit of data capacity.
cylinderverb/ˈsɪlɪndə(ɹ)/
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To calender; to press (paper, etc.) between rollers to make it glossy.
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。