" Fortuitous" - this means unplanned or coincidental.

“偶然发生的”—含义是意外或巧合。

Researchers estimate that half of consumer spending is unplanned.

据研究人员的估算 有一半的消费者支出是计划外的。

It was a big, unplanned BBC Learning English meet up!

这真是一场没有提前计划的BBC《地道英语》的大聚会！

Unplanned breaks are antithetical to the pervasive anxiety to perform.

计划外的休息对保持良好表现的焦虑很不利。

533 days of unplanned space travel where anything could go wrong.

533 天超出计划外的宇宙航行，哪里都可能会出差错。

Sophia had already had two unplanned children before this third child was born.

在第三个孩子出生之前苏菲亚就已经有两个未预期的孩子了。

He likes things unplanned and likes to see where the road takes him.

他喜欢没有计划的做事情，喜欢顺其自然。

Everything Jake and I have done has been pretty unplanned and organically unfolds.

杰克和我所做的每一件事都是完全没有计划的，而且是有机地展开的。

But this is likely the first unplanned strike to be identified in this way.

但这可能是第一次计划外的以这种方式被发现的撞击。

In the US each year, nearly half of all pregnancies are unplanned.

在美国，每年有近半的怀孕是计划外的。

Most unplanned pregnancies occur to women who are in their 20s.

大部分意外怀孕的人都是二十多岁的女子。

The document sets rules for naval ships and aircraft to follow during unplanned contacts at sea.

该文件规定了海军舰船和飞机在海上意外相遇时应该遵守的规则。

When an unplanned event impacts the situation, it's important to remember to stay calm and focused.

当一个意想不到的事件影响到当时的情况时，很重要的是要记住保持冷静和专注。

For example, human error is often the reason police give for a preventable – but unplanned – accident.

例如，" 人为过失（human error）" 多指警察给出的造成本可以预防、却意外发生了的事故的原因。

But the strategic implications of his thuggery look no less dire for being, in all likelihood, unplanned.

但是，探究特朗普暴行所采用的策略，细思极恐，因为他极有可能是没有任何计划的。

They were neither planned nor unplanned; they came when they came, and we were glad to have them.

他们既非计划生育也不是突然袭击；他们来了就来了，我们很高兴有了他们。

Let's talk about personal management skills. What life skills can help people stay in control of unplanned situations?

我们来谈谈个人管理技能。什么样的生活技能可以帮助人们控制计划外的情况？

What seemed like an unplanned comment about Syria's chemical weapons had a major effect on world events this week.

一段对叙利亚化武的偶然评论可能对本周的世界事件产生重大影响。

Sophia's story demonstrates how unplanned pregnancy is rooted in inequitable access to birth control.

苏菲亚的故事呈现出不在计划中的怀孕根源于无法平等取得避孕方法。

Three years later, the percentage of births from unplanned pregnancies dropped 23 percent.

三年后，计划外怀孕的比例减少了 23%。