I was doing some research in back numbers of the local paper.我正在翻查当地的过期报纸做一些研究。

We can still supply back numbers of most issues at £2.95.我们仍可以2.95英镑的价格提供大多数期号的过刊。

Once she was a hot topic in all the celebrity magazines, but now she's very much a back number.她一度是所有名人杂志的热门话题, 但现在已经过气。

Riley proved he is not a back number by scoring a five-under-par 68 in the second round.赖利在第二轮打出68杆的成绩, 低于标准杆5杆, 证明了自己并没有过时。