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To the surprise of the little boy, the door opened automatically as he approached.
令小男孩吃惊的是，在他走近时门自动打开了。
youdao
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The swing door will resile automatically after it has been opened.
弹簧门被打开后可以自动弹回。
youdao
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The swing door will resile automatically after it has been opened.
弹簧门被打开后可以自动弹回。
youdao