Whewellite
水草酸钙石
🗣️ 情景例句
My company manufactures toys and games for children.
我们公司专为孩子们生产玩具和游戏器具。
Have you invited any girls?
你邀请女孩吗？
I would like to ask you about some stamps.
我想问问有关一些邮票的事。