和我的同学们一样，我认为有必要更新教室里的多媒体设备。

In common with many of my classmates, I think it is necessary to update the multimedia equipment in the classroom.

youdao

我认为有必要修正一下。

I feel it necessary to make a correction.

youdao

我认为有必要买部手机以便联系更方便。

I believe it is necessary to buy a cell phone so that we can contact more easily.

youdao

Yes, I do believe it's theft but perhaps it is necessary to condone that theft.

我确实认为这是盗窃,但也许我们有必要容忍它。

耶鲁公开课 - 公正课程节选

Do I think it should be necessary?

我认为有必要吗？

想成为律师的话 - SpeakingMax英语口语达人