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どこ, いずこ, いずく, いづこ, いどこ, 何処, 何所, 何處
1. where, what place
2. how much (long, far), what extent
哪里
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题;表示与另一选项(无论是否明确提及)形成对比;表示强调