It is time for opposing factions to unite and work towards a common goal.

现在是对立各派联合起来、为共同目标而奋斗的时候了。

《牛津词典》

It is time for us to shoulder the responsibility of protecting the environment.

是时候让我们承担保护环境责任了。

youdao

It is time for the city of Grandview to stop funding the Grandview Symphony Orchestra.

现在是格兰德维尤停止资助格兰德维尤交响乐团的时候了。

youdao

As histories tell it,he looked and looked at the first photograph, and said: "This is one for all time."

VOA: special.2010.05.31

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

Now that U.S. healthcare costs are approaching an eye-popping 25 percent of GDP and barely 30 percent of U.S. doctors work in primary care, it is time for us to pay attention.

FORBES: Realigning Health with Care

While we may never see eye to eye with the U.S. military over this case, it is time for all of us to move on.

CNN: U.S. military frees Iraqi journalist

Not many people subscribe to the notion that it is better for countries to borrow, except when they are talking about the U.S. It is time for a paradigm shift: Asian countries should stop being thrifty and learn to indulge in huge borrowing in order to build megaprojects, as did Malaysia's former prime minister, Dr. Mahathir.

FORBES: Spend or Save?