dam
名词 dam:
a barrier constructed to contain the flow of water or to keep out the sea
同义词:dike, dyke
a metric unit of length equal to ten meters
同义词:decameter, dekameter, decametre, dekametre, dkm
female parent of an animal especially domestic livestock
动词 dam:
obstruct with, or as if with, a dam
同义词:dam up