cleavage
US /ˈkliː.vɪdʒ/
UK /ˈkliː.vɪdʒ/

1.
乳溝, 胸部
the hollow between a woman's breasts, especially as exposed by a low-cut garment.
:
•
Her dress showed a lot of cleavage.
她的裙子露出了很多乳溝。
2.
分裂, 分歧, 裂痕
a division or schism, especially a split between two opposing sides.
:
•
The political party suffered a deep cleavage over the new policy.
該政黨因新政策而出現深刻的分裂。