Amphicoelous
a. [动]两端或两面皆凹的\\na. [动](鱼的脊椎骨等)两凹的
🔁 扩展释义
【医】 两[边]凹的
🗣️ 情景例句
Some rock 'n' roll.
一些摇滚乐。
Would you like to go for a walk?
你想要去散步吗？
He noticed at once that discipline was slack: the Danes had the self-confidence of conquerors, and their security precautions were casual.
他马上发现丹麦军纪律松弛，他们以征服者自居，安全措施马马虎虎。