Once you have removed the virus it is safe to reconnect to the Internet.

病毒一清除，就可以安全地重新连接互联网。

《牛津词典》

Officials arrived to assess whether it is safe to bring emergency food supplies into the city.

官员们过来评估调拨紧急救济食品进入该市是否安全。

《柯林斯英汉双解大词典》

I think it is safe to say that very few students expend the effort to do quality work in school.

我认为有把握这么说，几乎没有学生能在学校用心读书。

《柯林斯英汉双解大词典》

It is safe to say there was no one there who had the same respect that Missus Sommers did for her surroundings.

VOA: special.2009.09.05

It's safe to say that Lycidas is one of the last poetic works of Milton's that's really consumed with his problem, the problem of fruitless anticipation.

谨慎的说，是弥尔顿最后的,切实地与他自身的问题有关的诗篇之一，他自身关于毫无成果的期望的问题。

耶鲁公开课 - 弥尔顿课程节选

Most of the time, it really is safe. You just have to be smart about it.

大多时候，都很安全。你只要放聪明点就好了。

大城市是否危险？ - SpeakingMax英语口语达人

Wait until it is safe to travel to volunteer sites and opportunities have been identified.

WHITEHOUSE: Our Top Stories

But I think it is safe to say that we are monitoring events throughout the world.

WHITEHOUSE: Press Briefing

"I don't think it is safe to visit the wet markets anymore, " she told Reuters.

BBC: China steps up bird flu precautions