bittern

n marsh bird related to the heron, with a characteristic booming call 麻鹰（苍鹭类, 鸣声低沉, 栖息於沼泽）.

bisexuality, bishop, bishopric, bismuth, bison, bistro, bit, bit by bit, bit part, bitch, bitchiness, bitchy, bite, biting, bitingly, bits, bitten, bitter, bitter-sweet, bitterly, bitterness, bitters, bittersweet, bitty, bitumen, bituminous, bivalve, bivouac, bizarre, bk, blab, blabber, blabbermouth, black, black and blue, black art, black box, black coffee, black comedy, black economy,