white spot
名词 n.
英文释义
名词 n.
- originally a white spot on 19th century geographical maps, indicating lack of knowledge, from the German expression "weißer Fleck auf der Landkarte", also known as "blank spot"
-
a place without coverage
— TMC coverage is smaller than that of the radio programme carrying the TMC service, therefore white spots do exist.
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数据来源: Wiktionary