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ふと, 不図, 不斗
1. suddenly, casually, accidentally, incidentally, unexpectedly, unintentionally
突然地,偶然地,出乎意料地,无意地
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