cudgel

v (-ll; US also -l-) 1 [Tn] hit (sb) with a cudgel 用粗而短的棍棒打（某人）. 2 (idm 习语) cudgel one's `brains think very hard 冥思苦索; 绞尽脑汁: Hard as I cudgelled my brains, I couldn't remember her name. 尽管我苦思苦想, 还是想不起她的名字.

CST, ct, cu, cub, cub reporter, cubby-hole, cube, cube root, cubic, cubical, cubicle, cubism, cubist, cuckold, cuckoo, cuckoo clock, cucumber, cud, cuddle, cuddlesome, cue, cue in, cuff, cuff-link, cuirass, cuisine, cul-de-sac, culinary, cull, cullender, culminate, culmination, culottes, culpability, culpable, culpably, culprit, cult, cultivable, cultivate,