动词短语
中文翻译：采取防御措施
同义词：
['be on the defensive', 'take precautions', 'be vigilant']
例句：
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1. The team decided to act on the defensive by blocking all shots.
该队决定采取防御措施，通过封堵所有射门。
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2. To protect ourselves from cyber threats, we need to act on the defensive.
为了保护我们自己免受网络威胁，我们需要采取防御措施。
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3. The company is taking steps to act on the defensive against potential cyber attacks.
该公司正在采取措施，以应对潜在的网络攻击。