同义词
n.
crenation
，
crenature
，
crenel
，
scallop
英文解释
n.
1.one of a series of rounded projections (or the notches between them) formed by curves along an edge
2.a notch or open space between two merlons in a crenelated battlement
网络释义
crenelle
堡眼; 枪眼;