常見(jiàn)例句Any of several snakes, such as the mud snake, said to grasp the tail in the mouth and move with a rolling, hooplike motion. 鐵環(huán)蛇：一種蛇，如泥蛇，據(jù)說(shuō)它們能將尾銜于口中，象滾鐵環(huán)一樣前進(jìn) 返回 hooplike