n.分裂；劈开；乳沟；[矿]解理；[生]卵裂
This cleavage persisted during the whole civilized period. 这种分裂继续存在于整个文明期。
There was indeed a cleavage between them. 他们之间确有分岐。
He had made a great cleavage in his life. 他已在自己的生活里劈出了一条鸿沟。
That new gown shows a large amount of her cleavage! 那件新的女长服袒露出她大部分乳沟！
The lay of the strata can imply that the rock splits easily along its direction of cleavage. 成层的地层意味着岩石易于沿着其解理方向裂开。
This marks the end of the cleavage stage of development. 这标志着卵裂发育阶段的结束。
Cleavage produces a blastula, a sheet of cells rounded into a sphere that in most species surrounds a cavity. 卵裂产生一个囊胚，形成的细胞壁球形排列形成一个空腔。
