Exercising alone can be boring.

独自一个人锻炼可能会很无聊。

《柯林斯英汉双解大词典》

youdao

Life would be boring without friends.

没有朋友，生活会很无聊。

youdao

Now these are going to be sort of dreary, boring, typical Martin lectures; dreary and boring historical surveys.

会比较沉闷，无聊，典型的Martin课程;,沉闷无聊的历史回顾。

耶鲁公开课 - 新约课程节选

If this were the end of the story though, it would be a kind of boring story and it's not the end of the story.

如果故事到这儿就戛然而止，未免过于乏味,故事还在继续。

耶鲁公开课 - 心理学导论课程节选

Now, I could go on right the way through here, but I'm going to stop because it gets to be a bit boring after a while.

我可以就这样一直算下去,但是还是到此为止吧,因为再这样下去会很无聊

耶鲁公开课 - 博弈论课程节选

Dividends can be boring things, but when it comes to your portfolio, they can be a saving grace.

FORBES: Look For Yield - In The Right Places!

Del Toro said that it would be boring to make a slavish adaptation.

NEWYORKER: Show The Monster

Where is it written that math, grammar and spelling have to be boring?

FORBES: It's Time For Technology To Disrupt Education