(M ) . on average 平均 . be happy with sth/ sb 对某事/某人满意 . for free 免费 . such as 例如 . encourage sb to do sth 鼓励某人做某事 . introduce A to B 把A 介绍给B . pass sth on(to) sb 把某物传递给某人 . be available for 对…有用 . far (away) from 远离;离开…很远 . make sure that 确保;确信 . graduate from university 从大学毕业 . upon/ on doing 一…就 . surf the internet 上网 . donate sth to sb 捐赠某物给某人 . forget to do sth 忘记去做某事 . inform sb of sth 通知某人某事 . prepare for 为…做准备 . be responsible for 对…负责;是…的原因 . be made up of 由…组成 . consist of 组成;由…构成;包含有 . come up with 想出;提出 . tell sb about sth 告诉某人某事 . sound like 听起来像 . word by word 逐字逐句地 . drop some subjects 放弃某些科目 . play on the school fields 在学校运动场上玩 . e-mail sb 给某人发邮件 .talk to sb about sth 关于某事和某人交谈 . prepare to do sth 准备做某事 . thank sb for 因为…感谢某人 . invite sb to do /swh……邀请某人做某事/ 去某地 . make a speech about 做有关…的演讲 . run a radio club 经营广播俱乐部 . approve (of) the idea 赞成这个主意 . require sb to do sth 要求某人做某事 (M ) . turn up 出现;调大 . a waste of time 浪费时间 . try to do sth 努力(尽力)去做某事 . force sb to do sth 强迫某人做某事 . spend time (in) doing sth 花时间做某事 . be supposed to do sth 应该做某事; . in charge 负责;主管 . shout at 对…大喊大叫 . give sb a chance to do sth 给某人机会做某事 . deserve to do sth 值得做某事 . instead of 代替 . be hard on sb 对…苛刻;对…要求严格 . now that 既然;由于 . be rude to sb 对某人粗鲁 . feel like doing sth 想要或喜欢做某事 . be different from sth 与…之间的不同 . in the form of 以某种形式 . pay attention to 重视;注意 ....