... postal matter 邮件 first-class matter第一类邮件 no matter how 不管怎样 ...
双语例句
1
On the first day of class our professor explained to us that he was going to leave the subject matter of our talks up to us, but he was going to provide the motivation of the speech.
开课的第一天,教授向我们解释,他将把演讲的选题留给我们自己,但他会提供演讲的设定目标。
2
He told the Financial Times that one of his prime targets was freeloading by current and former executives of the airline, many of whom claimed free firstclass seats as a matter of course.