builder

n.建筑工人，建设者

budgie, buff, buffalo, buffer, buffet, buffet car, buffoon, buffoonery, bug, bug-eyed, bugbear, bugger, bugger-all, buggy, bugle, bugler, build, build a fire, build up, build-up, building, building site, building society, buildings, built, built-in (also in-built), built-up, bulb, bulbous, bulge, bulgy, bulk, bulk buying, bulk order, bulkhead, bulky, bull, bull's-eye, bull-headed, bull-necked,