通过促进教育资源共享，互联网可以为不同背景的学生创造公平的竞争环境。
Through promoting the sharing of educational resources, the Internet can level the playing field for students from different backgrounds.
许多艺术作品，如皮奇尼尼和高度写实主义雕塑家罗恩·穆克的作品，在没有背景的情况下，很容易被误以为是怪诞的而神秘的现象。
Many artworks, such as those by Piccinini and hyperrealist sculptor Ron Mueck, could easily be mistaken for a bizarre, seemingly mysterious phenomenon when seen out of context.
在实际的剧场中，可以看到幕布在每一幕开始时被拉开，在结束时被合上，让置景工可以为剧本的下一幕改变背景。
In a live theatre, you can see the curtain going up at the beginning of each act and down at the end, which allows the stage hands to change the scenery for the upcoming stage of the play.
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