curtain-up的用法和样例：
例句
用作名词 (n.)
- The three knocks were sounded for the curtain to rise.
这时候开幕锤敲响了。 - China presented its decision to set up three protest parks in the capital before the Olympics as a step toward openness.
中国当局在奥运开幕前指定叁个公园为举行抗议活动的地点，做为走向开放的一个步骤。 - Fortunately, the curtain went up and my friend said no more.
幸好启幕了，我的朋友没有再讲下去。 - In the first act the curtain goes up on a dungeon in a landlord's house.
第一幕启幕时，舞台上现出了地主家里的一个地牢。
词汇搭配
- ring up the curtain 响铃开幕(开始)...
