1. ring down the curtain : 结束某事, 响铃落幕；
2. behind the curtain : 幕后, 秘密；
及物动词
1. I bought some material to curtain the house.
我买了一些料子给房子装上窗帘。
名词
1. Please draw the curtains.
请把窗帘拉上。
2. The curtain falls.
闭幕。
3. curtain
3. A thick curtain of fog hid the mountains from view.
一层浓雾遮蔽群山。
4. Our infantry was protected by a curtain of artillery fire.
我们的步兵在炮兵火力掩护之下。