单词：billabongs
(billabong 的第三人称 -s形式) n. 死河, 死水潭
-s form of billabong
n. a stagnant pool of water in the bed of a stream that flows intermittently
n. a branch of a river made by water flowing from the main stream only when the water level is high
n. a stagnant pool of water in the bed of a stream that flows intermittently
n. a branch of a river made by water flowing from the main stream only when the water level is high