Plzj
[化] 掺镧锆钛酸铅
🗣️ 情景例句
Harry, would you like to see a menu? Harry
你想看看菜单吗？
What were you doing this time last year?
去年这时候你在干什么？
It is our satellite. It is quite near us in space.
它是我们的卫星。它离我们相当近，仅38万公里远。