It is time to put a stop to the violence.

现在是结束这场暴力活动的时候了。

《牛津词典》

All the country's political parties have accepted that it is time to revamp the system.

这个国家的所有政党都认可现在是改革这一体制的时候了。

《柯林斯英汉双解大词典》

It is time to fight back against street crime.

现在是打击街头犯罪行为的时候了。

《牛津词典》

Now it is spring in the northern part of the world so it is time to celebrate that season.

VOA: special.2010.03.15

What was neat about it is before that time, the predominant species to use for air conditioning or refrigeration was ammonia.

在这之前是很整洁的，之前最主要的用于空调或者冰箱的,物质是氨。

麻省理工公开课 - 固态化学导论课程节选

Well, if this thing is going to vibrate for any length of time it better be a standing wave.

好的，如果它在任意时间振动,那它就是驻波。

麻省理工公开课 - 固态化学导论课程节选

It is time to put an end to the struggle in the Middle East.

WHITEHOUSE: Middle East Peace Talks

Perhaps it is time to examine how we are treating America's gay youth through that lens.

CNN: Why bias puts young gays' health at risk

In the field of criminal law, at least, it is time to call a halt.

FORBES: Colorful Scalia Opinions Emphasize Bedrock Rule of Law Principles