来自拉丁语fortuna, 运气，机会，词源同fortune.

1. Their success is the result of a fortuitous combination of circumstances.

他们的成功是各种环境因素偶然联系在一起的幸运产物。

2. Her years with MMC would turn out to be fortuitous for Britney.

同米老鼠俱乐部在一起的年代后来给她带来了好运.

3. The occurrence of such things is by no means fortuitous.

出现这种问题绝不是偶然的.

4. A series of fortuitous circumstances advanced her career.

一系列的幸运事使她的事业一帆风顺.

5. Gifts of books and journals can often be quite fortuitous.

图书和期刊的赠阅可能往往带有相当的偶然性.