life jacket 的英语意思
life jacketˈlife ˌjacket noun [countable] British English 
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a piece of clothing that can be filled with air and worn around your upper body to stop you from sinking in the water一种可充气的衣物，穿在上身，防止人在水中下沉 SYN life vest American English
查看全部语言翻译 a piece of clothing that can be filled with air and worn around your upper body to stop you from sinking in the water一种可充气的衣物，穿在上身，防止人在水中下沉 SYN life vest American English