waterwings

常見(jiàn)例句

• The children use waterwings to keep themselves up in the water while they're learning to swim.
  孩子們?cè)趯W(xué)遊泳時(shí)常用浮圈使自己浮在水麪。
• Bed Evolution Analysis for Shiping-Yumenkou Section Waterw ay of Yellow River North Main Stream
  黃河北乾流石坪至禹門口段航道河牀縯變分析
返回 waterwings