动词
中文翻译：打开
同义词：
['begin', 'start', 'unveil']
例句：
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1. The door is open, so please come in.
门是开着的，请进来。
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2. The new exhibition opened to the public last week.
上周新的展览向公众开放。
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3. The book was published in 1980 and has been open for over 30 years.
这本书于1980年出版，至今已超过30年。