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Use "fins" in a sentence
"This event is unfolding as we speak and unless you expect Obama to swim out there in fins and snorkle with a giant sponge I suggest you wait before attempting to draw comparisons."
"But British conservation groups warn that the high market value of shark fins is fuelling the outlawed practice of "finning", where sharks are hacked with machetes to remove their fins, often while still alive, before the carcasses are dumped overboard."
"Lengthening and broadening of fins is not proof of flight, either."