cyclo- 或 cycl-pref.(前缀)Circle; cycle:圆的;轮转的:例句:cyclorama.半圆形天幕A cyclic compound:环状化合物:例句:cyclohexane.环己烷来源:Greek kuklo- 希腊语 kuklo- from kuklos [circle] * see k wel- 源自 kuklos [ 圆,圆形] *参见 k wel-