名词: snorkeler 过去式: snorkeled 过去分词: snorkeled 现在分词: snorkeling 第三人称单数: snorkels
Noun:- breathing device consisting of a bent tube fitting into a swimmer's mouth and extending above the surface; allows swimmer to breathe while face down in the water
- air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time
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