遇到過有人在檔案伺服器上建立共享檔案夾，自己無法copy檔案，别人無法看到的情況麼？？
那要留心下面這個圖和文字：
the offline files stored on your computer will not be able to sync with the files on the network while offline from the network. when you connect to the network again and the offline files are online again, they will automatically sync any changes you have made while offline with the files on the network.
一般是下面這種狀态，那就可以符合正常理性了。
