79. at a low cost　 成本　 it cost sb time/money to do... 花费　　 sth cost sb money　 值　

The accident cost him his life. 使…为代价

78. in the corner of ,　 at/on the corner of ,　 around the corner　　 The shop is around the corner.　 Christmas is around the corner .圣诞将近。(=at hand = near)　　　 be in a tight corner

drive sb into a corner = corner sb 使…处于困境

77. tell lies 说谎　　　 talk nonsense 胡说　　　　 talk business　 说正紧事

76. at one's convenience　　 在…方便时　

It is convenient to sb...　 It is convenient for sth...　　 It is convenient for sb to do...

75. be in control　 = be under control　 在…控制下　 be out of control = beyond control　

be in control of　 掌管　　 have control over / of 管的住　 have no control over / of 管不住

74. contribute $10 to a charity collection　 捐赠　

contribute to sth　 促成，有助于　 Does smoking contribute to lung cancer?

Doing exercise contributes to our health.

the contribution of money捐赠

73. What he said is a contrast to what he did.　 对比　 by contrast 对比之下　　　

72. What he said is the contrary of what he did. 相反 (be contrary to)　 on the contrary 正相反　　

71. I like its style but I don't like its content . 内容　 The movie lacks content .　 缺乏内涵

70. The bottle contains milk.　 包含contain = have sth within itself　 include = have sth as a part