chock

v [Tn] wedge (sth) with a chock or chocks 用垫块塞住（某物）.

chirpy, chirrup, chisel, chiseller, chit, chit-chat, chivalrous, chivalrously, chivalry, chive, chivvy (also chivy), chloride, chlorinate, chlorination, chlorine, chloroform, chlorophyll, ChM, choc, choc-ice (also choc-bar), chock-a-block, chock-full, chocolate, choice, choir, choir school, choirboy, choirmaster, choke, choked, choker, cholera, choleric, cholesterol, chomp, choose, choose to do, choosiness, choosy (also choosey), chop,