来自detect,查明，侦查。

1. "Once a detective, always a detective," he said lightly.

“一日为侦探，终生为侦探，”他满不在意地说。

2. I don't have to be a detective to figure that out.

我不是侦探也想得出。

3. Joan Smith's detective stories are a cut above the rest.

琼·史密斯的侦探小说比其他侦探小说都要出色。

4. Despite careful detective work, many items have never been recovered.

尽管进行了悉心探查，许多物品还是一直没有找回。

5. The detective was trying to winkle information out of her.

侦探试图从她那儿套取信息。