boom 低沉有回響的聲音 The great bell tolled with a deep boom.

　　bore 鉆孔，挖(通道) bore through a wall

　　bounce 彈起，反彈 The ball doesn’t bounce well.

　　bound 跳躍，彈回 She bounded to her feet and waved her right hand triumphantly.

　　boycott (聯(lián)合起來)抑制，拒絕參加 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 賄賂 accept(或take)a bribe from sb.

　　brisk 輕快的，生氣勃勃的 a brisk pace

　　brittle 易碎的，一碰就破的 brittle glass

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

　　blame 責備，責怪 Public opinion blames Mrs Smith for leading the girl astray.

　　blast 一陣(風)，一股(氣流) a blast of wind

　　blaze 火焰 The fire sprang into a blaze.

　　boast 自吹自擂，自夸的話 He is full of boasts.

　　bolt 螺栓，(門，窗的)插銷 a small bag of nuts and bolts

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

　　bang (突發(fā)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.促進，激勵;一抬;一推 vt.推動，增強

　　bowel n.腸;[pl.]內(nèi)部，深處

　　breach n.違反，不履行;破裂 vt.沖破，攻破

　　briefcase n.手提箱，公事皮包

　　bait n.餌，引誘物 vt.用餌引誘;招惹，捉弄

　　balcony n.陽臺;(電影院等的)樓廳，樓座

　　ballet n.芭蕾舞，芭蕾舞劇;芭蕾舞團

　　bizarre adj.異乎尋常的，稀奇古怪的

　　ballot n.(不記名)投票;投票總數(shù);投票權 vi.投票

　　barbecue n.烤肉用的臺架;烤肉野餐 vt.在臺架上烤肉

　　barren a.貧瘠的;不育的;(植物)不結果的;無用的

　　belly n.肚子，腹部;(像肚子一樣)鼓起的部分，膛

　　benign a.(病)良性的,(氣候)良好的,仁慈的,和藹的

　　beverage n.(水，酒等之外的)飲料

　　bin n.(貯藏食物等用的)箱子

　　blueprint n.藍圖，設計圖，計劃 vt.制成藍圖，計劃

　　blackmail n.訛詐，敲詐，勒索;脅迫，恫嚇

　　blade n. 刀刃，刀片;槳葉，槳片;草葉，葉片

　　blouse n.女襯衣，短上衣，寬闊的罩衫

　　bruise n.青腫，挫傷;傷痕vt.打青;挫傷

　　bully n.恃強欺弱者，小流氓 vt.威脅，欺侮

　　bureaucracy n.官僚主義，官僚機構;(非民選的)委任官員

　　burglar n.(入室行竊的)盜賊

　　bar 條，塊，桿，棒, 酒吧 a bar of gold

　　beforehand 預先，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.