(深孔岩心的)圆盘化现象
He wears an identity disc round his neck. 他脖子上挂著身分牌儿。
I have many discs. 我有许多唱片。
Have you recorded the data in disc? 你已把那些数据存储到磁盘上了吗？
You can't copy your file with this disc; it's full. 你不能用这张磁盘拷文件，这张盘满了。
