rotation
n
1
(a) [U] rotating or being rotated 旋轉; 轉動
the rotation of the Earth 地球的自轉.
(b) [C] one complete movement of this type (旋轉的)一圈; (一)轉
five rotations per hour 每小時旋轉五圈.
2 [C, U] regular organized sequence of things or events 輪流; 輪換
the rotation of crops/crop rotation, ie varying the crops grown each year on the same land to avoid exhausting the soil 作物的輪作[輪種].
3 (idm 習語) in rotation in turn; in regular succession 輪流地; 輪番地; 循環地
The chairmanship of the committee changes in rotation. 委員會主席一職是輪流擔任的.