重点讲解：
1. in addition 另外；加之；除…之外；
例句：Part-time English classes are offered. In addition, students can take classes in word-processing and computing.
开设了非全日制的英语班L2TbhP#gOtT。另外，学生可以修读文字处理和计算机课程lQ0[E73R+M)Jgqy,3sdO。
2. look forward to sth./doing sth. 期待；盼望；
例句：I look forward to paying you a visit next week.
我期待着下星期去拜访你*ZLCI!7_B6d8e4。
3. first of all 首先；
例句：First of all, machines had no hardware problems.
首先，机器没有硬件毛病l6kfS0Y(Ad*DF18)。
4. as of 在…时；从…起；自…始；
例句：As of late August, most analysts think ore imports will break through 500 million tons, the question being by how much.
截至八月底绝大多数分析家认为铁矿石进口将会突破5亿吨，但问题是价格是多少&BqvjwnUCB@RFu_LO9k。