axis

• 名词，指物体围绕其旋转或排列的中心线（实际或想象的），也引申指中心、核心或基准、坐标轴等。

A noun referring to a central line, real or imaginary, around which something rotates, is arranged, or is measured.

不规则复数

1. Imaginary line for rotationB2formal

   An imaginary straight line around which an object rotates or is symmetrically arranged.

   轴

   • The Earth rotates on its axis once every 24 hours.
   • The wheel spins around its central axis.
   • The axis of the gyroscope remained stable.

2. Reference line in graphsB1formal

   A fixed reference line on a graph, used to measure coordinates (e.g., x-axis, y-axis).

   坐标轴

   • The x-axis represents time, and the y-axis represents temperature.
   • Plot the data points along the horizontal axis.
   • The graph has two axes: one for distance and one for speed.

3. C1formal

   A historical or political alliance between countries or groups, often used in the context of WWII.

   轴心国

   • The Axis powers included Germany, Italy, and Japan during World War II.
   • The alliance formed an axis against the opposing coalition.
   • The treaty created a new axis of cooperation between the nations.

   同义词alliancebloccoalitionententeleaguepact