Endoceratite
内角石属的化石
🗣️ 情景例句
January the thirtieth and you're invited.
1月30日，希望你能出席。
The president must have the approval of Congress to declare war.
总统若要宣战，必须获得国会的承认。
Thank you .It was very nice of you to help me.
谢谢你帮我，你真好。