47. take up/bear the family burden承担家庭负担　　　 be burdened with 肩负着

relieve the family burden The burden is too heavy for you.对你们来说负担太重。

46. bump into sb 撞到…(bump against)　　 knock sb down 撞倒…

45. be built of bricks 用砖砌成　 build up one's body强健体魄　 built up one's muscle 锻炼肌肉 built (up) one's mind 增强智力　　 develop one's mind 发展智力

44. browse through = leaf through　　 browse about(around) the book store　 逛书店

43. the broad shoulders 宽的肩膀　　　 in broad daylight 在光天化日之下

broadly speaking　 从广义上讲　 strictly speaking　　 generally speaking

42. bring about = lead to = result in = cause 引起　　　　 bright up 抚养长大　　　

bring forward = put forward 提出　　　　 bring sb back to health 使…恢复健康

The news brought tears to her eyes.　　 这消息使她热泪盈眶

41. make a brief speech　　 简短演讲　　 a brief stay　　　　 In brief　 简短而言…

40. give(offer, hand out) bribes to sb　 向某人行贿　 　take bribes受贿　　 bribe sb

39. out of breath　 上气不接下气　　　　　　 short of breath　 气短；气急

hold/catch one's breath 闭住呼吸　 take/draw a deep breath 深呼吸　

38. break into pieces碎成碎片　 break a record 打破记录　　 break one's promise/words食言

break the balance of　　　 break away from除去；逃脱　　 turn away from 避开；不理睬 break out 爆发　　 break down坏了；抛锚　　 break into/in 破门而入　　

a ten-minute break 十分钟休息　　　 at break = at the dawn of the day 在黎明