fluke

1. N-COUNT If you say that something good is a fluke, you mean that it happened accidentally rather than by being planned or arranged. 侥幸[非正式] [usu sing, also 'by' N]

The discovery was something of a fluke. 这项发现多少有点侥幸。

2. N a flat bladelike projection at the end of the arm of an anchor 锚爪 (Also called flue)

3. N any parasitic flatworm, such as the blood fluke and liver fluke, of the classes Monogenea and Digenea (formerly united in a single class Trematoda) 寄生扁形虫