月角
Having three cusps, especially a molar tooth. 三尖的有三个尖的，尤指臼齿
Having two points or cusps, as the crescent moon. 有二尖端的有二尖端或尖头的，如月牙
Having two points or cusps,as the crescent moon. 有二尖端的有二尖端或尖头的，如月牙。
Having three cusps,especially a molar tooth. 三尖的有三个尖的，尤指臼齿
I was born on the cusp between Virgo and Libra. 我生于室女宫和天平宫会切的时辰。
We are just on the cusp between autumn and winter. 此时正是秋冬之交。
