The children use water wings to keep themselves up in the water while they're learning to swim.
孩子们在学游泳时常用浮圈使自己浮在水面.
《简明英汉词典》
Good thing this one's got water wings.
得到翼型浮袋的好事物这一个.
期刊摘选
英英释义
Noun
1. a life preserver consisting of a connected pair of inflatable bags that fit under a person's arms and provide buoyancy; used by children learning to swim