动词短语
中文翻译：防止
同义词：
['guard against', 'be wary of', 'be vigilant about']
例句：
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1. We need to guard againstthe possibility of accidents happening.
我们需要警惕可能发生的事故。
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2. The company is guarding againstcyber threats with advanced security measures.
该公司正在使用先进的安全措施来防范网络威胁。
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3.She was guarding against the cold bywearing a warm coat.
她穿着一件暖和的外套来抵御寒冷。