动词短语
中文翻译：除非
同义词：
['except', 'unless']
例句：
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1. If it rains tomorrow, we'll have to barring the windows.
如果明天下雨，我们将不得不关窗户。
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2. She barred him from entering the room.
她禁止他进入房间。
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3. The meeting was called off due to the barring of bad weather.
由于恶劣天气的阻碍，会议被取消了。