相关单词近义词 cavity 洞, depression 沮丧, hole 洞, hollow 空的, pit 坑, shell 壳, cup 杯子, bowl 碗, pan 平底锅, well 很好地临近词crave, crate, cratera, Cratere, Crateri, cratered, Craterus, crateral, craterkin, craterlot, cratering, craterlet 返回 craters