n.[C]

1. 週期；循環；一轉
   The seasons of the year make a cycle.

   一年四季構成一個循環。

2. 整個系列；整個過程
   He studied the cycle of events leading to the Great Depression.

   他研究了導致大蕭條的一系列事件。

3. （表現同一主題等的）一組小說（或戲劇，詩歌等）
4. 一段長時期，時代
5. 腳踏車；摩托車
   She goes to work on her cycle.

   她騎腳踏車上班。

6. 【無】周（波）
7. 天體運行的軌道

vi.

1. 循環，輪轉
   The machine cycles automatically.

   這臺機器自動循環運轉。

2. 騎腳踏車（或摩托車）
   I cycled to the beach.

   我騎車去海灘。

vt.

1. 使循環，使輪轉

n.

1. a series of events that are regularly repeated in the same order.
   ▸the period of time taken to complete a single such series.
2. one complete sequence of changes associated with a recurring phenomenon such as an alternating current, wave, etc.
   ▸Physics  a cycle per second; one hertz.
   ▸Ecology  the movement of a simple substance through the soil, rocks, water, atmosphere, and living organisms of the earth:

   the carbon cycle.
3. a series of musical or literary works composed around a particular theme.
4. a bicycle.
   ▸a ride on a bicycle:

   a 112-mile cycle.

v.

1. ride a bicycle.
2. move in or follow a cycle of events.

[名]

1. ①循環。
2. ②週期；頻率。
3. ③腳踏車。