revolve

revolve 旋转，转动，环绕

re-,向后，往回，再次，-volv,转动，词源同 devolve,evolve,involve.

revolve (v.)

late 14c., "to change direction, bend around, turn (the eyes) back," from Old French revolver and directly from Latin revolvere "roll back, unroll, unwind; happen again, return; go over, repeat," from re- "back, again" (see re-) + volvere "to roll" (see volvox). In 15c., "to turn over (in the mind or heart), meditate." Meaning "travel around a central point" first recorded 1660s (earlier "cause to travel in an orbit around a central point," mid-15c.). Related: Revolved; revolving.

1. Mars takes longer to revolve on its axis than the earth.

火星自转一周的时间比地球长。

2. Mars takes longer to revolve on its axis than the earth.

火星自转一周的时间比地球长.

3. The planets revolve around the sun.

行星绕着太阳运转.

4. Planets revolve about the sun and rotate on their axis.

行星在围绕太阳旋转的同时,也绕着它们的自转轴自转.

5. The wheels began to revolve slowly.

车轮开始慢慢转动.

【whirl, turn, roll, rotate, revolve, spin, circle】
这组词都有“转动、旋转”的意思，其区别是：
whirl: 指旋转或作圆周运动，侧重急速或力量。
turn: 普通用词，中性，含义不确切，可指作一个圆周运动或连续地作圆周运动，也可指仅是沿圆的弧形转动。
roll: 指某物在平面上滚动或翻滚。
rotate: 侧重指物体围绕自己的轴或中心旋转，即自转。
revolve: 强调指物体围绕本身以外的中心旋转，即公转。
spin: 指沿内轴迅速而连续旋转，或沿外部一个点作快速圆周运转。
circle: 指作圆周运动。

【revolve, involve, evolve】
revolve: v.旋转，转动。
• The room began to revolve , then he fainted. 屋子开始旋转，然后他就昏倒了。
involve: v.需要，包含；使卷入，牵涉。
• Getting a driver's licence involves learning how to drive, studying the rules of the road, and taking a test. 要得到驾驶执照需要学习开车，学习交通规则，还要经过考试。
evolve: v.发展，演变。
• Agriculture evolved slowly over thousands of years. 几千年来，农业发展得很缓慢。