bulb

n.电灯泡；球状物

bug, bug-eyed, bugbear, bugger, bugger-all, buggy, bugle, bugler, build, build a fire, build up, build-up, builder, building, building site, building society, buildings, built, built-in (also in-built), built-up, bulbous, bulge, bulgy, bulk, bulk buying, bulk order, bulkhead, bulky, bull, bull's-eye, bull-headed, bull-necked, bull-terrier, bulldog, bulldog clip, bulldoze, bulldozer, bullet, bullet-headed, bullet-proof,