on average 平均 on duty 值日，值班 make certain/ sure that… 弄确实, 一定要 make sth./sb. into 把…做成, 使成为, 使be made from make up for a bottle of 一瓶 a great deal of 很多 a (large)number of 许多 lots of 许许多多的 a place of interest 名胜 a waste of 浪费
at the head of 在……的前头
because of = due to / thanks to/ owing to因 be proud of 为……而自豪 be tired of 厌烦
dream of 向往，渴望，梦想 in charge of 主管，负责
in honour of 为了纪念，为向……表示敬 in the hope of 怀着……的期望 knock out of 从……中敲出来 make sure of 确定，弄清楚 masses of 大多数
play the role of 扮演……角色 on the point of 正要……的时候 remind sb of 使某人想起 scores of 许多，大量 talk of 谈论，议论
take possession of占有，拥有 on board 在船(车，飞机等)上， on fire 着火