Serendipitous
a. 偶然发现的
🗣️ 情景例句
But please call first.
不过，请你先打电话。
The window-washer has a dangerous job.
玻璃清洁工担负着危险的工作。
You might try one of our cheaper components.
你试试这种较便宜的组件怎样？