听课
课程与PC端同步更新，充分利用零碎时间。做题
海量精选试题，想练就练，瞬间提分。答疑
海量精选试题，想练就练，瞬间提分。直播
名师大咖面对面，有问有大收获多。(91)Drop in=drop by=visit
(92)Due 到期的
例句：The book will be due next week.
(按计划，安排要)发生，到达的
例句：What time will the next bus due?
due to =because of=owing to 因为，由于
例句：His promotion is due to his hard working.
Due to the heavy rain， we have to give up the plan for the weekends.
(93)Economic 经济的 economical 节俭的
(94)Effective 有效的 efficient 效率高的
(95)Else 其它的 something ~ somebody ~
(96)In the end 最终(结果) at last 最后(经过很长时间)
例句：I have finished the essay at last.
We were thinking of going to England， but in the end we went to the USA.
(97)Enjoy oneself=have a good time 玩的开心 help oneself 随便
(98)Establish=set up=found
(99)Evident=obvious=apparent 明显的 显而易见的
(100)For example=for instance
(101)Be exhausted=be tired out =be worn out 筋疲力尽的
(102)Exist 存在
(103)Expose 暴露 受影响
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