柯林斯词典crayfish /ˈkreɪˌfɪʃ/ (crayfish) 1. N-COUNT A crayfish is a small shellfish with five pairs of legs which lives in rivers and streams. You can eat some types of crayfish. 淡水龙虾 返回 crayfish剑桥词典a small animal that lives in rivers and is similar to a lobster , or its flesh eaten as food 淡水鳌虾（肉） 返回 crayfish