Tim, may I introduce you to my uncle's secretary, Mary Waller?

　　蒂姆，我可以把你介紹給我叔叔的秘書(shū)瑪麗·沃勒嗎？

　　"And now, without further ado, let me introduce our benefactor."

　　“現在，閑話(huà)少說(shuō)，讓我來(lái)介紹一下我們的捐贈人�！�

　　The film-makers will be present at the screenings to introduce their works.

　　電影制作人將在放映時(shí)到場(chǎng)介紹他們的作品。

　　The government is having to introduce some difficult changes, particularly in moving over to a market economy.

　　政府將不得不引入一些艱難的變革，特別是在轉向市場(chǎng)經(jīng)濟的過(guò)程中。