Snorkel

['snɔːk(ə)l] or ['snɔrkl]

解释:

(noun.) air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of time.

(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.

(verb.) dive with a snorkel.

汉克整理--From WordNet