personal flotation device
present participle of Boaty McBoatface
(zoology) Any water snail in the family Chilinidae.
A life vest or other device or article of clothing designed to be used by one person as an aid to remaining safely afloat in water, especially in a emergency situation.
A renewable energy source.
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DiQt（ディクト）
無料
★★★★★★★★★★
