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
Verb:
dive with a snorkel
造句
用作名詞(n.)
With a snorkel, however, a diver can stay under water for quite a long time. 可是，潛水員攜帶一根通氣管就可以在水下呆很長時間。
Seabreacher has a long snorkel concealed within the top fin which provides an airflow into the boat. 海豚快艇的頂鰭內部埋設有一根長的通氣管，這根通氣管為飛艇提供空氣。