cylinder

cylinder — 名詞

1. A container or shape whose ends are identical circles and whose sides run parall

1.名詞B1
釋義

圓柱體

兩端為圓形的立體形狀或容器

A container or shape whose ends are identical circles and whose sides run parallel between them, similar to a pipe or a can of soda.

例句

The restaurant stores cooking oil in large metal cylinders near the kitchen entrance.

這家餐廳把食用油存放在廚房入口附近的大型金屬圓筒裡。

cylinder — common storage container

Tanvi showed the children how to roll a flat sheet of paper into a cylinder.

Tanvi 示範給孩子們看如何把一張平紙捲成圓柱體。

cylinder as a geometric 3D shape

同義詞
  • tube

    more general; a tube can be flexible and need not have a circular cross-section

  • pipe

    usually refers to a hollow cylinder used for carrying liquids or gases, especially in plumbing

  • drum

    a large cylinder used for storing bulk liquids, often made of metal or plastic

2. A metal tube within an engine where a piston slides up and down to change fuel i

2.名詞B2
釋義

汽缸

引擎中活塞滑動產生動力的管狀部件

A metal tube within an engine where a piston slides up and down to change fuel into motion.

例句

The mechanic inspected each cylinder of the car engine for cracks or scratches.

技師檢查了汽車引擎的每一個汽缸，看有沒有裂痕或刮傷。

cylinder of an engine — standard context

Sven's motorcycle has a single large cylinder, which makes the engine simpler to repair.

Sven 的摩托車只有一個大型汽缸，引擎維修起來更簡單。

用法筆記

Often used in compounds like 'six-cylinder engine' or 'cylinder head'. The number of cylinders in an engine affects its power and smoothness.

3. In basketball, the painted area near the basket where offensive players cannot s

3.名詞C1
釋義

禁區

籃下進攻方不得停留超過三秒的區域

In basketball, the painted area near the basket where offensive players cannot stay for more than three seconds.

例句

The referee called a three-second violation when Pim stayed inside the cylinder too long.

裁判吹判 Pim 在禁區待太久，三秒違例。

the cylinder = restricted area in basketball

Lucía drove past her defender and scored a layup from inside the cylinder.

Lucía 越過防守者，在禁區內上籃得分。

同義詞
  • key

    short for 'keyhole area'; older term for the painted area near the basket

  • paint

    informal term referring to the colored area on the court floor

  • restricted area

    the official rulebook name for this space

用法筆記

Also called the 'restricted area' or 'lane'. In official FIBA and NBA rules, this is the painted area under the basket marked by a semi-circle or rectangle.

常見錯誤

❌The guard stayed in the cylinder for five seconds and no foul was called.
✅The referee called a three-second violation when the guard stayed in the cylinder for five seconds.
💡The three-second limit applies to offensive players in the restricted area.

4. In basketball, the imaginary vertical space directly above the basket that defen

4.名詞C1
釋義

籃框上空

籃框上方不可碰觸的假想垂直空間

In basketball, the imaginary vertical space directly above the basket that defenders must not touch during a shot.

例句

The referee called goaltending when Iris's hand entered the cylinder above the rim.

Iris 的手伸進籃框上空的圓柱體區域時，裁判吹了妨礙中籃。

cylinder above the rim — imaginary vertical space

Once the ball is inside the cylinder, no defensive player may touch it.

球一旦進入籃框上空的區域，防守球員就不能碰觸。

同義詞

用法筆記

Also called the 'imaginary cylinder'. Touching the ball inside this area is called goaltending (in the NBA) or basket interference (in FIBA rules).

常見錯誤

❌The player touched the ball above the rim, and it was legal.
✅The player touched the ball above the rim, and the referee called goaltending.
💡Any contact with the ball inside the cylinder above the rim is a violation.