159. convince sb. of (=cause sb. to believe or feel certain; to persuade sb.)　 使某人确信,try to persuade sb. to do sth.劝说某人做…　

158. at one’s convenience(=where and when it suits one) 在方便的时间或地点 .be convenient to　 for 对…方便　

157. under control (被)控制住 out of control无法控制　

156. contribute to 有助于　

155. in contrast towith 和…形成对比 by contrast 对比之下　

154. contrast…with 把…与…相对(对照)　

153. on the contrary 相反　

152. contrary to (=in opposition to) 与…相反　

151. be content with(=be satisfied with) 满足于be content to do sth. 愿意做某事　

150. to one’s heart’s content尽情地,痛痛快快