动词短语
中文翻译：在电话范围内
同义词：
['within range', 'within reach']
例句：
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1. I'm calling from the hospital to check on my friend.
我在医院打电话来问候我的朋友。
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2. The police were within call at all times.
警察随时待命。
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3. She was within call of her phone when she received the message.
她接到电话时就在呼叫范围内。