游泳圈英文是Swimming ring。
例句：
1、也许与水相关的单词中最难发现的就是‘float’（浮动）这个单词了，它恰如其分地隐藏在图片左侧上方的男孩使用的游泳圈上了。
Perhaps the most difficult water related term to find is 'float', which is fittingly hidden on the rubber ring used by the boy in the top left of the picture.
2、此外，他还在里面放了游泳圈等玩具供儿子玩并猜李耍。
The youngster's father has kitted the pool out with an inflatable ring and other toys for six-year-old to enjoy.
3、若你肚子上有“游泳圈兆仔”，那么你属于苹果型绝迟身材。
If you carry most of your weight in the midsection, you belong to the apple figure. What you need are vertical stripes.
4、我每天运动，可就是没法减掉我的“游泳圈”。
I exercise every day, but I can't get rid of these love handles.
5、大力水手呼声也很高，挎着游泳圈直接跑到书柜上护驾。
Energetically jack tar voice is very loud also, carrying on the arm natant group runnings to bookcase to protect directly drive.
