aqualung

noun

1. 轻便潜水器
   a piece of breathing equipment that a diver wears on his/her back when swimming underwater

1. Flammable, non-flammable or poisonous such as butane, propane, aqualung cylinders, lighter fuels or refills, aerosols;
   易燃的，非易燃的或是有毒的，比如丁烷，丙烷，水中呼吸氧气筒，轻质燃料，气雾剂；
2. Could you tell me a shop where I can rent an aqualung?
   能告诉我哪有出租水中呼吸器的商店吗？
3. It was a perfection of a valve that made the aqualung possible and put man back into the sea with all the freedom of a fish.
   是阀的完善使研究水中呼吸器成为可能，并将人类送到海里，使其象鱼一样自由。

noun

1. a device (trade name Aqua-Lung) that lets divers breathe under water

   Synonym:    Aqua-Lungscuba