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1. Oxford American Dictionary

   rotation

   • IPA[rōˈtāSHən]

   美式

   • n.
     the action of rotating around an axis or center；the action or system of rotating crops.

   • noun: rotation, plural noun: rotations

2. • 釋義

   n.

   名詞

   • 1. the action of rotating around an axis or center the moon moves in the same direction as the earth's rotation 同義詞 revolving, turning, spinning, gyration, wheeling, ... 更多whirling, twirling, swiveling, circling, turn, revolution, spin, whirl, orbit
   • ▪ the action or system of rotating crops.
   • ▪ the cycle of growth and felling or cutting of trees.
   • ▪ the passing of a privilege or responsibility from one member of a group to another in a regularly recurring succession it has become common for senior academics to act as heads of department in rotation 同義詞 sequence, succession, alternation, cycle
   • ▪ a tour of duty, especially by a medical practitioner in training she was completing a rotation in trauma surgery
   • ▪ the conceptual operation of turning a system around an axis.
   • ▪ another term for curl