DC什么意思？

"DC"在英语中的含义是 "Data Center"。

例句：

1、It helps to have a digital camera or a scanner, but it's not required.

拥有一台数码相机或者扫描仪可以极大地提升拍照效率，但并不一定要购买。

2、If you're interested in photography and want to develop your skills, consider investing in a digital camera or scanner.

如果你对摄影感兴趣，并且想要提升技能，那么考虑投资一台数码相机或扫描仪。