Swim ring

A swim ring (also known as a swim tube, rubber ring, or, in the United States, a lifesaver) is a toroid-shaped (hence the name "ring") inflatable water toy.

The swim ring was derived from the inner tube, the inner, enclosed, inflatable part of older vehicle tires. The inner tube, when inflated, was used as a water toy, and as a floating object to lounge on.

单词	Swim ring
释义	Swim ring 英语百科 Swim ring A swim ring (also known as a swim tube, rubber ring, or, in the United States, a lifesaver) is a toroid-shaped (hence the name "ring") inflatable water toy. The swim ring was derived from the inner tube, the inner, enclosed, inflatable part of older vehicle tires. The inner tube, when inflated, was used as a water toy, and as a floating object to lounge on.
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