Those individuals showed what one motivated Marine and his rifle can do.
7 seconds sound clip from the Jaws (1975) movie soundboard.
You can hear this line at 00:32:02 in the Blu-ray version of the movie.
Quote context
[...]
- Do any of you people know where these individuals learned how to shoot?
- Those individuals showed what one motivated Marine and his rifle can do.
- And before you ladies leave my island, you will all be able to do the same thing.
- There will be a magic show at 0930.
[...]