; be on one‘s back(=be ill in bed)卧病不起。
65. at one‘s back(=supporting or favoring sb. )支持,维护; have
sb. at one’s back有…支持,有…作后台
66. turn one‘s back on sb. (=turn away from sb. in an impolite way)
不理睬(某人),背弃,抛弃
67. behind one‘s back背着某人(说坏话)
68. be based on / upon基于
69. on the basis of 根据…,在…基础上
70. beat…at在…运动项目上打赢
71. begin with以…开始。 to begin with(=first of all )首先,第一
(经常用于开始语)
72. on behalf of(=as the representative of )以…名义
73. believe in(=have faith or trust in ; consider sth./sb. to be
true)相信,依赖,信仰。
74. benefit (from)受益,得到好处。
75. for the benefit of为了…的利益(好处)
76. for the better好转
77. get the better of (=defeat sb. )打败,胜过。
78. by birth在出生上,论出身,按血统 at birth 在出生时; give birth
to出生
79. blame sb. for sth.因…责备某人 . blame sth. on sb.把…推在某人
身上
80. in blossom开花(指树木) be in blossom开花(强调状态) come into
blossom 开花(强调动作)
81. on board到船上,在船上,上火车或飞机
82. boast of(or about)吹嘘
83. out of breath 喘不过气来
84. in brief(=in as few words as possible)简言之
85. in bulk 成批地,不散装的
86. take the floor起立发言
87. on business 出差办事。
88. be busy with sth. 于某事 . be busy doing sth. 忙于做某事
89. last but one倒数第二。
90. but for (=without)要不是。表示假设
,四、六级考试高频短语及搭配之一