Difluoride
二氟化物
🗣️ 情景例句
Thank you again.
再次感谢。
A fox should not be of the jury at a goose's trial.
审鹅不应狐陪审。
and still cannot fathom the exact outline of the vision before them.
站在镜前，不能辨认出自身的真面目。