kerb drill

set of rules for crossing the road safely 过马路的安全规则.

keep track, keep under, keep up, keep up with, keep...from, keep...in mind, keep/hold pace with, keeper, keeping, keepsake, keg, keg beer, kelp, kelvin, ken, kennel, kepi, kept, kept woman, kerb (also esp US curb), kerb-crawling, kerbstone, kerchief, kerfuffle, kernel, kerosene, kerosene, kerosine (also kerosine), kestrel, ketch, ketchup, kettle, kettledrum, key, key (also cay), key money, key signature, key-pad, key-ring, keyboard, keyhole,