brink
n.（悬崖峭壁的）边沿；（危险的）边沿；边缘；初始状态
网络解释.边缘战士；边缘；器物的边沿；河岸
n.1.边释义下的同义词
rim edge limit borderline extremity brim lip margin apogee perimeter line
2.边缘释义下的同义词
crossroads verge moment point turning crisis threshold juncture
双语例句
1. 1 . They sparred for a moment, on the brink of a full fight.
他们互相推搡了一会儿，眼看就要大打出手了。
来自柯林斯例句