do not disturb

I hung the do-not-disturb sign on the door so I could sleep in.我在门上挂了“请勿打扰”的牌子，这样我就可以睡个懒觉。

She left the do-not-disturb sign on for the entire morning so she could work without any interruptions.她把“请勿打扰”的牌子挂了一整个早上，以便能够不受任何干扰地工作。