最終更新日：2024/08/06

(underwater diving) A small diving cylinder fitted with an independent regulator, used as a backup in case of emergency.

正解を見る

pony bottle

問題を編集する

元となった辞書の項目

pony bottle

noun

(underwater diving) A small diving cylinder fitted with an independent regulator, used as a backup in case of emergency.

I always carry a pony bottle when I go scuba diving.

意味（1）

(underwater diving) A small diving cylinder fitted with an independent regulator, used as a backup in case of emergency.