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上り坂， 登り坂， のぼり坂， 昇り坂， のぼりざか
1. ascent, uphill, upward slope
2. (gradual) upturn, increase
tbd
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
