动词
中文翻译：Unknown
同义词：
['protect', 'guard', 'defend', 'secure']
例句：
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1. The outguards were responsible for keeping the area safe from intruders.
守门人负责确保该区域对入侵者保持安全。
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2. He was appointed as the new outguard to protect the castle's secrets.
他被任命担任新看守，以保护城堡的秘密。
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3. They had to be vigilant and outguard against any potential threats.
他们必须警惕并做好任何潜在威胁的防备工作。