名词
中文翻译：电视文本
同义词：
['teletext', 'teletext message']
例句：
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1.The company is offering a free trial of its new teletext service.
该公司正在提供其新电视文本服务的免费试用。
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2. The teletext system allows viewers to access information on demand.
电视文本系统允许观众按需获取信息。
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3.The teletext messages were sent out at 6:00 pm and should be received by 7:00 pm.
电视文本消息在下午6点发送，应在晚上7点前收到。