drop the curtain meaning in English

闭幕, 演出终止

He dropped the curtains over the broad window and regal moon .
他放下窗帘，遮掉了宽阔的玻璃窗和雍容的月儿。
Just then the lamp again flickered ; the noise startled madame de villefort , who shuddered and dropped the curtain
灯花又毕剥地爆了一下那个声音把维尔福夫人吓了一跳，她打了一个寒颤，离开帐子。
Pessimism drops the curtain on tomorrow ! optimism raises it back up and we see new doors opening . tomorrow looks hopeful
悲观思想使人看不见明天，乐观思想却要把那帘幕掀开，使我们看见敞开的新门户，明天充满希望