n.水下通氣管；通氣管

vi.用通氣管潛航

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(nèi)部埋設(shè)有一根長的通氣管，這根通氣管為飛艇提供空氣。