Exocycloida
外环形棘皮目
🗣️ 情景例句
Thank you. It's delicious.
谢谢，味道很好。
A bargain is a bargain.
达成的协议不可撕毁。
We really wish you'll have a pleasant stay here.
我们真诚地希望你们在这里过得愉快。