名词

1. 侥幸;意外;偶然
If you say that something good is a fluke, you mean that it happened accidentally rather than by being planned or arranged.

1. parasitic flatworms having external suckers for attaching to a host

Synonym: trematodetrematode worm

2. either of the two lobes of the tail of a cetacean

3. flat bladelike projection on the arm of an anchor

Synonym: flue

4. a barb on a harpoon or arrow

5. a stroke of luck

Synonym: good luckgood fortune