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小学， しょうがく
1. elementary school, primary school, grade school
2. school for children over eight years old in ancient China
3. traditional Chinese philology
小学
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
