Mesosilicate
焦硅酸鹽
??? 情景例句
speak to a real-estate agent about a house.
和房地產仲介商談一談關于房子的事。
For a lost thing care nothing.
一事之失，不必介意。
We had better go back to the station now,Ken.
肯，我們現在最好回車站去。