111. keep company with (=be friendly and go out together)和…要好。
112. compare…with … 把…与…比较
113. compare…to… 把…比作…
114. by comparison 比较起来
115. in comparison with (=in contrast to)和…比起来
116. compensate for (=give sth. to make up for)补偿，赔偿，弥补 compensate sb. for sth. 赔偿，弥补
117. complain of (or about)抱怨;诉苦;控告;complain about 抱怨某人或事情; complain to sb. about sth. (or sb.) 向某人抱怨…;complain (抱怨);complement (补充);compliment (恭维)
118. comply with (=act in accordance with a demand, order, rule etc.)遵守，依从
119. conceive of (think of, imagine, consider)想象，设想
120. concentrate on (or upon)集中，专心
