重點講解：
1. be unique to
有的；特有的；
eg. No one knows for sure why adolescence is unique to humans.
沒有人確切地知道為什么只有人類才會經歷青春期。
eg. This interesting and charming creature is unique to Borneo.
這種有趣迷人的動物是婆羅洲獨有的。
2. thanks to
幸虧；歸因于；
eg. Thanks to her skilful handling of the affair, the problem was averted.
多虧她對事情處理得巧妙，才避免了麻煩。
eg. hanks to his effort, it is more successful than we have expected.
由于他的努力，獲得了比我們預期的更大的成功。
3. be littered with
充滿的；
eg. History is littered with men and women spurred into achievement by a father's disregard...
歷史上因為被父親漠視而發奮成功的兒女數不勝數。
eg. Charles' speech is littered with lots of marketing buzzwords like 'package' and 'product'.
查爾斯的演講充斥著“包裝”、“產品”之類的營銷領域流行用語。