The biggest advantage to this approach is that it is still fairly easy to perform AD hoc reporting, given that all the data you need about a single class is stored in only one table.

这种方法最大的好处是，它仍然能相当容易地执行专门报告，只要您所需的有关单一类的所有数据都只存储在一张表中。

youdao

It intersperses an occasional AD between songs but the ads tend to be fairly localized and occasionally even useful.

在每首歌曲之间偶尔会有一些广告，不过广告是本地化的，有些还比较有用。

youdao

For comparison purposes, a banner AD on the Web getting a 2% click-though rate (CTR) is considered fairly successful, but most campaigns now receive just 0.2%-0.3% CTRs.

要知道，如果网页上的banner广告点击率达到2%的话就会被视为非常成功，但大部分点击率只有0.2 - 0.3%。

youdao

For comparison purposes, a banner AD on the Web getting a 2% click-though rate (CTR) is considered fairly successful, but most campaigns now receive just 0.2%-0.3% CTRs.

要知道，如果网页上的banner广告点击率达到2%的话就会被视为非常成功，但大部分点击率只有0.2 - 0.3%。

youdao