tube

Compared meaning: a hollow, tube-shaped object (noun).

比较义项：管（名词）。

• tube 本词

  Countable noun for a single hollow cylindrical object or container, often with one end sealed (like a toothpaste tube); names one discrete item.

  可数名词，指一根中空的圆柱形物体或容器，常常一端封口（如牙膏管）；指的是一个具体的物件。

  She squeezed the last bit of toothpaste out of the tube.

  她把牙膏管里最后一点牙膏都挤了出来。

• tubing

  Uncountable noun for tube-shaped material in general, typically sold or used by length, such as plastic or rubber tubing for plumbing; names the material, not one object.

  不可数名词，泛指管状材料，通常按长度购买或使用，例如用于管道的塑料管材或橡胶管材；指的是材料本身，而不是某一根具体的管子。

  He connected the tubing carefully to avoid any water leaks.

  他小心地把管材连接好，以免漏水。

Tube and tubing both name tube-shaped things, but grammar differs. Tube is countable, naming one hollow object, like a toothpaste tube. Tubing is uncountable, naming tube-shaped material sold by length, like plastic tubing for plumbing. This excludes tube meaning 'the London subway' or 'a television'.

tube 和 tubing 都可指管状的东西，但 tube 是可数名词，指一根具体的管子或管状容器；tubing 是不可数名词，指成批、按长度使用或出售的管状材料。这里不比较 tube 在英式英语中表示“地铁”（the Tube）或口语中表示“电视”的用法。