战争爆发以后，他们与叛军结了盟。

When war broke out, they aligned themselves with the rebel forces.

《柯林斯英汉双解大词典》

战争爆发时你住在哪儿？

Where were you living when war broke out ?

《牛津词典》

战争爆发时他29岁。

He was 29 when war broke out.

《柯林斯英汉双解大词典》

Now at the outbreak of the Peloponnesian War Socrates was just under 40 years of age.

伯罗奔尼撒战争爆发时,苏格拉底才快要接近40岁。

耶鲁公开课 - 政治哲学导论课程节选

So, it's--In a way, it decided when the fighting is going to take place up to a point.

这种情况,在一定程度上,决定了战争爆发的时间

耶鲁公开课 - 古希腊历史简介课程节选

Quickly, India and Pakistan, ? How do they get along? Has the prospects for war between the two countries we see is in the background? -Probably yes.

印度和巴基斯坦，它们的关系怎么样,这两个国家间潜在的战争,可能爆发吗？，-也许吧。

普林斯顿公开课 - 国际座谈会课程节选