boom 低沉有回响的声音 The great bell tolled with a deep boom.

bore 钻孔，挖(通道) bore through a wall

bounce 弹起，反弹 The ball doesn’t bounce well.

bound 跳跃，弹回 She bounded to her feet and waved her right hand triumphantly.考研预报名

boycott (联合起来)抑制，拒绝参加 boycott uncooperative manufactures

brace 托架，支架 He braced his muscles and lifted the weight.

breed (使)繁殖 Rabbits breed families rapidly.

bribe 贿赂 accept(或take)a bribe from sb.

brisk 轻快的，生气勃勃的 a brisk pace

brittle 易碎的，一碰就破的 brittle glass

bias 偏见，偏心 have a bias against sb.(或sth.)

blame 责备，责怪 Public opinion blames Mrs Smith for leading the girl astray.

blast 一阵(风)，一股(气流) a blast of wind

blaze 火焰 The fire sprang into a blaze.

boast 自吹自擂，自夸的话 He is full of boasts.

bolt 螺栓，(门，窗的)插销 a small bag of nuts and bolts

ban (以官方明令)禁止，取缔 He was banned from entering the city.

bang (突发的) sudden loud bang

bump 碰，撞(against, into) The truck bumped against the wall in the dark.

burst 爆炸，爆裂 The boiler burst.boost n.促进，激励;一抬;一推 vt.推动，增强

bowel n.肠;[pl.]内部，深处

breach n.违反，不履行;破裂 vt.冲破，攻破

briefcase n.手提箱，公事皮包

bait n.饵，引诱物 vt.用饵引诱;招惹，捉弄

balcony n.阳台;(电影院等的)楼厅，楼座

ballet n.芭蕾舞，芭蕾舞剧;芭蕾舞团

bizarre adj.异乎寻常的，稀奇古怪的

ballot n.(不记名)投票;投票总数;投票权 vi.投票

barbecue n.烤肉用的台架;烤肉野餐 vt.在台架上烤肉

barren a.贫瘠的;不育的;(植物)不结果的;无用的

belly n.肚子，腹部;(像肚子一样)鼓起的部分，膛

benign a.(病)良性的,(气候)良好的,仁慈的,和蔼的

beverage n.(水，酒等之外的)饮料

bin n.(贮藏食物等用的)箱子

blueprint n.蓝图，设计图，计划 vt.制成蓝图，计划

blackmail n.讹诈，敲诈，勒索;胁迫，恫吓

blade n. 刀刃，刀片;桨叶，桨片;草叶，叶片

blouse n.女衬衣，短上衣，宽阔的罩衫

bruise n.青肿，挫伤;伤痕vt.打青;挫伤

bully n.恃强欺弱者，小流氓 vt.威胁，欺侮

bureaucracy n.官僚主义，官僚机构;(非民选的)委任官员

burglar n.(入室行窃的)盗贼

bar 条，块，杆，棒, 酒吧 a bar of gold

beforehand 预先，事先 If you wanted soup for lunch you should have told me beforehand.

bewilder 使迷惑，使糊涂 I’m bewildered as to which one to buy.