Neutrovision
中子摄象显示装置
🗣️ 情景例句
Please sit down.
请坐下。
Time past cannot be called back again.
光阴一去不复返。
it is quite reasonable to regard the sea floor as the basic form of the crust of the earth,
因此完全有理由把海床看作地壳的基本模壳，