| 序号 | 英文 | 音标 | 词性 | 中文 |
| | braggadocio | brAgE5dEuFiEu | n. | 自夸, 吹牛大王 |
| | braggart | 5brAgEt | n.；adj. | n. 吹嘘；adj. 吹牛的, 自夸的 |
| | bragger | | n. | 吹牛 |
| | brahma | 5brB:mE | | 印度大种鸡 |
| | brahmacharya | 9brB:mE`tFB:rjE | n. | (婆罗门教的)禁欲,独身 |
| | brahmapootra | | n. | 婆罗吸摩鸡 |
| | braid | breid | v.；n. | v. 编织；n. 编织物 |
| | braid ply | | | 编织层 |
| | braided | | | 辫成辫子形的, 辫成麻花状的 |
| | braided and molded hose | | | 编包和模制管 |
| | braided cable | | | 编织电缆 |
| | braided construction hose | | | 编织胶管 |
| | braided hose | | | 有编织物填衬软管 |
| | braided metallic flexible pipe | | | 金属丝编织层软管 |
| | braided ply | | | 编织(加强)层 |
| | braided sleeving | | | 编织套管 |
| | braided stream | | | 辫状水道 |
| | braided wire | | | 编(织)线 |
| | braider | 5breidE | n. | 编穗带者, 缝辫机, 穗带编织机 |
| | braiding | 5breidiN | | 缏饰 |
| | brail | breil | n.；vt. | n. 卷帆索, 抄网；vt. 用卷帆索卷, 以抄网捞 |
| | brailer | | | 大型抄网的起网机 |
| | brain | brein | n. | 脑, 头脑 |
| | brain abscess | | | 脑脓肿 |
| | brain box | | n. | [解]头盖骨, 脑壳 |
| | brain case | | n. | [解]头盖骨, 脑壳 |
| | brain cell | | n. | [医]脑细胞 |
| | brain coral | | | 脑珊瑚 |
| | brain cortex | | | 大脑皮层 |
| | brain death | | n. | 〈医〉脑死亡 |
| | brain drain | | n. | 智囊流失 |
| | brain drainer | | | 外流的人才(尤指知识分子) |
| | brain electrical activity | | | 脑电活动 |
| | brain fag | | n. | 脑衰竭 |
| | brain fever | | n. | [医]脑膜炎 |
| | brain heart infusion | | | 脑心浸液 |
| | brain hemispheres | | | 大脑两半球 |
| | brain hormones | | | 脑激素 |
| | brain industry | | | 头脑产业 |
| | brain map | | | [医, 心理]脑谱图 |
| | brain mapping | | | 脑电图 |
| | brain power | | n. | 脑力，智能 |
| | brain rudiment | | | 脑原基 |
| | brain sand | | | 脑砂 |
| | brain sauce | | | (畜)脑髓酱 |
| | brain stem | | | 脑干 |
| | brain storm | | n.；v. | n. 集体研讨, 灵机一动；v. 出主意,想办法 |
| | brain trust | | n. | 智囊团 |
| | brain truster | | n. | 智囊团团员, 顾问 |
| | brain wave | | n. | 脑电波 |
| | brain work | | | 动脑子 |
| | brain worker | | | 脑力劳动者 |
| | braincap | | | 颅盖 |
| | braincase | `breInkeIs | n. | (=brain box)脑壳 |
| | brainchild | 5breIntFaIld | n. | 指计划,想法,创作等脑力劳动的创造物 |
| | brainfag | `breInfAg | n. | 脑疲劳 |
| | brainless | 5breInlIs | adj. | 无头脑的, 愚笨的 |
| | brainman | | n. | 参谋 |
| | brainpan | `breInpAn | n. | 头盖 |
| | brainpower | | n. | 智能, 智囊, 智囊团 |
| | brains | | n. | 智力, 脑髓 |
| | brains trust | | n. | 智囊团, 专家小组 |
| | brainsick | `breInsIk | adj. | 神精错乱的, 疯狂的, 有脑病的 |
| | brainstem | | | 脑干 |
| | brainstorm | 5brein7stC:m | n.；v. | n. 灵机一动；v. 集体讨论 |
| | brainstorming | 5brein7stC:miN | | 智力爆发 |
| | brainstorming trust | | n. | 智囊团；专家顾问团 |
| | brainteaser | `breIn9ti:zE(r) | n. | 难题, 谜 |
| | brainwash | 5breinwCF | n.；vt. | n. 洗脑；vt. 对人洗脑, 以宣传说服 |
| | brainwashing | `breIn9wCFIN | n. | 洗脑 |
| | brainwave | | n. | 脑波, 灵机 |
| | brainwork | `breInw\:k | n. | 脑力劳动 |
| | brainworker | `breIn9w\:kE(r) | n. | 脑力劳动者 |
| | brainy | 5breInI | adj. | 有头脑的, 聪明的, 多智的 |
| | braise | breiz | vt. | 炖, 蒸 |
| | braised | | | 炖熟的, 焖熟的, 用文火炖到全熟的 |
| | braised bamboo shoot | | | 油焖笋 |
| | braised beef | | | 炖牛肉 |
| | braised meat | | | 炖肉, 焖肉 |
| | braised turnip | | | 红焖大头菜 |
| | braised young chicken | | | 红焖子鸡 |
| | braiser | | | 火[蒸] 锅 |
| | brait | breit | | 未研磨的金刚石 |
| | braize | | vt. | 炖, 蒸 |
| | brake | breik | n.；v. | n. 闸, 刹车；v. 刹车 |
| | brake actuator | | | 制动传动装置 |
| | brake anchor | | | 闸瓦支持销 |
| | brake anchor pin | | | 制动块支撑销 |
| | brake anchorage | | | 制动块支座 |
| | brake apparatus | | | 刹车[制动]装置 |
| | brake application | | | 制动, 上闸 |
| | brake application magnet valve | | | 电磁制动阀 |
| | brake application valve | | | 制动作用阀 |
| | brake axle | | | 制动轴, 闸轴 |
| | brake band | | | 制动器带, 闸带 |
| | brake band anchor clip spring | | | 闸带紧夹弹簧 |
| | brake band lining | | | 闸带衬层, 刹车带衬层 |
| | brake bar | | | 闸杆, 制动杆 |
| | brake beam four points support | | | 制动梁四点支托 |
| | brake beam fulcrum | | | 制动梁支点 |
| | brake beam hanger | | | 制动梁吊 |