He practiced speaking English with his American colleague.

他和他的美国同事练习说英文。

Of his knowledge was that he had read in a book given him by an American colleague in Paris.

他承认，这个时期他的全部知识只是从巴黎的一个美国同事给他的一本书上学到的那点东西。

He earns, on average per year, 76,000 dollars, while his American colleague earns more than 100,000 dollars.

他平均一年的薪水是76000美金，而他的美国同事一年能赚100000美金。

We had an American colleague working with us at the time, who only a year before had been on a work assignment at the top of one of the towers.

当时我们有一个美国同事，他在仅仅一年前曾经在两座楼其中一座的顶楼工作。

Later in his impromptu speech Mr Sha turned to an American colleague, singling out Bob Orr, from the executive office of the secretary-general.

随后，沙祖康在他的即席演说中，把矛头转向一位美国籍同僚——在秘书长执行办公室工作的波布·奥尔。