重点讲解：
1. in a sense 从某种意义上说；
例句：In a sense, the accent has been considered as an individual symbol.
在某种意义上，口音甚至成为了一种个性的符号mIaYP#eWH8.2SFAsQR^S。
2. for example 例如；比如；
例句：For example, studies have been done on windbreaks in parts of West Africa.
例如，研究小组已经完成对西非部分地区防风林的研究n]m;A)1YnQQW(4a。
3. look at 考虑；研究；
例句：We have set up a task force to look at the question of women returning to work.
我们已经成立了一个工作组去调查妇女复工的问题~H_qb%+h^2AMe)vOpEso。
4. such as (用于举例)例如，像，诸如；
例句：Trees such as spruce, pine and oak have been planted.
种植了云杉、松树和橡树等树木o)eZxnL=AKID^K。