Disphenoid
复正方楔; 双半面晶形
🗣️ 情景例句
Mr. Carlson is busy at the moment. May I help you?
Carlson先生现在正忙着呢。我可以为你效劳吗？
That nation is famous for its tourism.
那个国家以旅游业闻名。
Bang! One shoe. Bang! The other shoe. It was too bad.
砰！一只鞋子。砰！另一只鞋子。这真是太糟了。