你昨天晚上看了第二频道7点钟的节目了吗？
Did you watch the 7 o'clock program on Channel 2 yesterday evening?
因为甚高频无线广播中，两个模拟频点之间的频道必须留着不用，为的是不干扰邻近频道。
In over-the-air VHF broadcasting, the channel between two analogue stations had to be left unused so that it would not interfere with adjacent ones.
零点—睡前喝一杯葡萄酒、看《探索》频道。
应用推荐