When I leave school I fear I will be of no use to society.

当我离开学校，我怕我对社会没有用。

In other words, watching that video would be of no use to you.

换句话说，看完这部视频对你没什么用处。

The efforts we have made seem to be of no use and we feel very disappointed.

我们做出了很多努力似乎是毫无用处的，我们感到非常失望。

He says that when whole-genome sequencing arrives, single-gene patents will be of no use.

他说当全基因组测序到来之后，单基因的专利将毫无用处。

If you do not actually have a solidroad of logic and structure, then an outline slide will be of no use.

如果您没有严密的逻辑结构，那么一张“议程表”或“路线图”幻灯片也没用。