单词	rubber boat
释义	rubber boat 橡皮艇
随便看	step-down counter step-down function step down gear step-down gear stepdown joint step-down method step down n. step-down operation step-down operator step down procedure step down ratio step-down ratio step down resistance stepdowns step-downs step-down side step down side step-down substation step-down transformation step - down transformer step down transformer step-down transformer step-down-transformer step-down transformers step-down turn ratio 散此麒麟发散步咏凉天散红光成绮数丛沙草群鸥散数回细写愁仍破数声不尽又飞去数声啼鸟数声啼鸟怨年华数声悲愤谁测数声新雁平底船平底锅平底鞋平庸平开平心平息平情平房平手