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1. (n,vs) now advancing and now retreating 2. ebb and flow 3. seesawing 4. taking alternately favorable and unfavorable turns =========================== ・ 一 : [いち] 1. (num) one ・ 一進一退 : [いっしんいったい] 1. (n,vs) now advancing and now retreating 2. ebb and flow 3. seesawing 4. taking alternately favorable and unfavorable turns スポンサード リンク
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