waterwings

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Swimming

wa·ter·wings /ˈwɔːtəˌwɪŋz $ ˈwɒːtər-, ˈwɑː-/ noun [plural]  DSStwo bags filled with air that you fasten on your arms when you are learning to swim 〔学习游泳时套在两臂上的〕双翼形充气浮袋

wa·ter·wings nounChineseSyllable  

waterwings
wa‧ter‧wings /ˈwɔːtəˌwɪŋz $ ˈwɒːtər-, ˈwɑː-/ noun [plural]
two bags filled with air that you fasten on your arms when you are learning to swim