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AU  门槛=30%  门=cost>10  步长 up=0.05 down=0.05  条数=4
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20240509MR手动广告 / MR_slot关键词
  kw    slot cars                      15.93 → 15.98   up    acos=30.0%   cost=404.39   clicks=271
  kw    slot car set                    1.55 → 1.50    down  acos=58.0%   cost=57.97    clicks=50
  kw    carrera go slot cars            0.35 → 0.30    down  acos=95.5%   cost=76.42    clicks=60

20250521MR出单keywords / 广告组 - 21/05/2025 11:08:59.400
  kw    slot cars                      16.55 → 16.50   down  acos=43.3%   cost=185.62   clicks=102