名词
中文翻译：Unknown
同义词：
['curtain lifter', 'curtain raiser']
例句：
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1. Thecurtain-raiser is a device thatraises the curtains automatically.
窗帘升起器是一种自动升起窗帘的设备。
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2. The curtain-raiser was invented to make it easierfor people to open and close their curtains.
窗帘升起器被发明出来，让人们更容易打开和关闭窗帘。
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3. The curtain-raiser has become a popular choice formany homes as it saves time andeffort.
窗帘升起器已经成为许多家庭的首选，因为它节省了时间和努力。