adj.直立的；多刺毛的
动词bristle的过去式和过去分词.
The dog's hair bristled up at sight of the stranger. 狗一看到陌生人毛就竖了起来。
The cat bristled at the sight of the large dog. 一见到那只大狗，猫身上的毛都竖起来了
The rooster bristled his crest. 公鸡竖起了鸡冠。
The animal's fur bristled up with anger. 那只动物因发怒而竖起了身上的毛。
