重点讲解：
1. as well 也；还；
例句：The sideshows will fetch in the people as well.
幕间穿插的表演同样可以招徕看客。
2. used to do sth. 过去常常；过去曾；
例句：A hermit used to live in the cave.
一位隐士曾经住在那个山洞里。
3. keep sb. from doing sth. 阻止（或防止、阻碍）…做；
例句：Robbie couldn't keep the child from yelling.
罗比没法使孩子不大叫大嚷。
4. in addition to 另外；加之；除…之外；
例句：In addition to be boring, life could also be cruel.
除了无趣，生活也是残酷的
