名词
中文翻译：向外的呼叫
同义词：
['call out', 'call for', 'make an outward call']
例句：
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1.The police made an outward call to alert the public about the danger.
警方对外发出了警告，提醒公众注意危险。
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2.The company made an outward call to advertise its new product.
公司对外进行了广告宣传，推广其新产品。
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3. The fire department made an outward call to request assistance.
消防部门对外发出了请求援助的呼叫。