重点讲解：
1. be unique to
有的；特有的；
eg. No one knows for sure why adolescence is unique to humans.
没有人确切地知道为什么只有人类才会经历青春期。
eg. This interesting and charming creature is unique to Borneo.
这种有趣迷人的动物是婆罗洲独有的。
2. thanks to
幸亏；归因于；
eg. Thanks to her skilful handling of the affair, the problem was averted.
多亏她对事情处理得巧妙，才避免了麻烦。
eg. hanks to his effort, it is more successful than we have expected.
由于他的努力，获得了比我们预期的更大的成功。
3. be littered with
充满的；
eg. History is littered with men and women spurred into achievement by a father's disregard...
历史上因为被父亲漠视而发奋成功的儿女数不胜数。
eg. Charles' speech is littered with lots of marketing buzzwords like 'package' and 'product'.
查尔斯的演讲充斥着“包装”、“产品”之类的营销领域流行用语。