副词
中文翻译：暗地里
同义词：
['secretly', 'covertly', 'clandestinely例句：1. He subterred his way into the meeting unnoticed.（他秘密地进入了会议。）2. The spy subterred through the security checkpoint without being detected.（间谍秘密通过了安检点没有被察觉。）']
例句：
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1. He subterred his way into the meeting unnoticed.
他秘密地进入了会议。
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2. The spy subterred through the security checkpoint without being detected.
间谍秘密通过了安检点没有被察觉。
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3.They subterred their way out of the locked room by breaking a small window.
他们通过打破一个小窗户秘密地逃出了锁着的房间。