bristle
/ˈbrɪsl; `brɪsl/ n
1 short stiff hair 短而硬的毛发
a face covered with bristles 满脸胡楂儿.
2 one of the short stiff hairs in a brush 刷子毛
My toothbrush is losing its bristles. 我的牙刷掉毛. bristle, v
1 [I, Ip] ~ (up) (of an animal's fur) stand up stiffly in fear or anger （指动物的毛）竖起（因惧怕或发怒）
The dog's fur bristled as it sensed danger. 那狗觉察到危险时, 毛都竖立起来了.
2 [I, Ipr] ~ (with sth) show anger, indignation, etc 显出愤怒、愤慨等
bristle with defiance, pride, etc 充溢著蔑视、傲慢等
She bristled (with rage) at his rude remarks. 她听了他粗鲁的话怒不可遏.
3 (phr v) bristle with sth be thickly covered with sth; have a large number of sth (usu unpleasant) 覆盖著很厚的或很密的某物; 有大量的某事物（通常指坏的）
trenches bristling with machine-guns 布满机枪的战壕
The problem bristles with difficulties. 此问题困难重重.