adj.偶然的，偶然发生的，(尤指)巧合的

The occurrence of such things is by no means fortuitous.
出现这种问题绝不是偶然的。
The meeting with Jack was fortuitous.
遇到杰克是机缘巧合。
Profits were enhanced by a fortuitous drop in the cost of raw materials.
因为原料成本幸运的下降了，所以利润也就增加了。
It was a fortuitous meeting that led to the formation of their successful business partnership.
这次偶然的相遇促成了他们成功商业伙伴关系的建立。
The discovery of the ancient artifact was considered a fortuitous find by archaeologists.
考古学家认为这个古代文物的发现是个幸运的发现。
Fortuitously, the rain stopped just as they were about to set out on their hike.
幸运的是，就在他们准备开始徒步旅行时，雨停了。
The fortuitous alignment of planets brought good luck to many astrologers' predictions.
行星的巧合排列使得许多占星家的预测应验了。
Her decision to take a detour turned out to be fortuitous as she found a hidden gem restaurant.
她临时改变路线的决定结果是幸运的，因为她找到了一家隐藏的美食餐厅。
A fortuitous turn of events saved them from a potentially disastrous situation.
一系列幸运的转折使他们免于一场潜在的灾难。
The fortuitous arrival of a new employee filled a crucial position in the company.
新员工的意外加入填补了公司的一个关键职位。
His injury proved fortuitous as it allowed him to focus on his writing without distractions.
他的受伤证明是幸运的，因为它让他能专注于写作，不受干扰。
The storm provided a fortuitous opportunity for the farmer to irrigate his fields without using water.
暴风雨为农民提供了意外的机会，不用水就能灌溉田地。
The actor's fortuitous role in a hit movie launched his career to new heights.
这位演员在一部热门电影中的偶然角色使他的事业达到了新的高度。