noun🔗Share救命胴衣An article of protective clothing that is designed to keep the wearer's head floating above the surface of the water."The boat trip required everyone to wear lifejackets for safety. "安全のため、ボート旅行では全員が救命胴衣を着用する必要がありました。nauticalsailingaidweardeviceChat with AIVocabulary GamePractice Reading
