Assume the geometry of the eclipsed form to be that given by rigidly rotating one methyl group with respect to the other. 假定重叠式的几何形是由一个甲基相对另一个甲基做刚体转动而得。
Reduplication is a type of word formation.The increase of form results in that of meaning. 摘要词汇重叠式是词汇的一种构形形式，形式的增加导致意义的增加。
