smoke ring短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 na.吸烟者吐出的烟圈；🌏烟环 Piston moves down to push the smoke ring out. the complete cycle takes around30 seconds. 活塞下移推动眼圈放出。整个循环需要将近30秒。 zhengjingjianzhu Sunset and smoke ring like cloud on Beijing Badaling Great Wall. 八达岭长城的日落与云烟。 kuenglish