flat water短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 平静的水域; 海中平滑油腻的水面 Expected swim conditions: Warm, flat water. While the swim course is in the open South China Sea, any significant swell, surf or chop is unlikely. 理想的游泳环境：温暖的海水，风平浪静的海面，当在这中国南部的公开海域游泳的环节，不希望有任何的风浪或海潮发生。 ironmanchina