名詞 cleavage:

1. the state of being split or cleft
2. the breaking of a chemical bond in a molecule resulting in smaller molecules
3. (embryology) the repeated division of a fertilised ovum
   同義詞：segmentation
4. the line formed by a groove between two parts (especially the separation between a woman's breasts)
5. the act of cleaving or splitting

1. That new gown shows a large amount of (her) cleavage!
   那件新的女長服袒露出(她)大部分乳溝！

cleav.age

n.（名詞）
The act of splitting or cleaving.
劈開：劈開或撕裂的動作
The state of being split or cleft; a fissure or division.
分裂，裂縫：劈開或裂開的狀態(tài)；裂縫或分裂
Mineralogy The splitting or tendency to split of a crystallized substance along definite crystalline planes, yielding smooth surfaces.
【礦物學】 解理，裂紋：結(jié)晶物質(zhì)沿一定結(jié)晶面產(chǎn)生光滑面的分裂或分裂傾向
Embryology
【胚胎學】
The series of mitotic cell divisions that produces a blastula from a fertilized ovum. It is the basis of the multicellularity of complex organisms.Also called segmentation
卵裂，卵割：由一組有絲分裂細胞從受精卵中生成的囊胚，是復雜有機體中多細胞的主要成分也作 segmentation
Any single cell division in such a series.
細胞分裂：這種一組分裂中的任何一次簡單細胞分裂
Informal The hollow between a woman`s breasts, especially as revealed by a low neckline.
【非正式用語】 乳溝，胸槽：婦女兩乳間的凹陷，尤指低領(lǐng)口展露的部分