[YOUKU_요우쿠] - for Chinese

▼ Direct(연출)

https://v.youku.com/v_show/id_XNDA5ODI0OTc5Mg==.html?spm=a2h0j.11185381.listitem_page1.5~A

▼ Explanation(해법)

https://v.youku.com/v_show/id_XNDA5ODMwMjAyOA==.html?spm=a2h3j.8428770.3416059.1