Hypostracum
下角层, 下壳层, 内壳层
🗣️ 情景例句
Really? What part?
真的？ 什么地方？
I can hardly wait to see the new comet.
我急不可待地要见到新彗星的出现。
Why isn't Mrs. Lee's cat catching the mice?
李太太的猫为何不在抓这些老鼠呢？