Will my recommended book be delayed in this special time? But I need it urgently.

Yes.

The ordered books will be delayed because of the closure of express service. If you need the books urgently, you can contact Lib-CDD@xjtlu.edu.cn to check for your book status, and ask for potential document delivery service through Inter-library loans (find more details at http://libguides.lib.xjtlu.edu.cn/ILL).