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)