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AU  门槛=30%  门=cost>10  步长 up=0.05 down=0.01  条数=4
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20240509MR手动广告 / MR_slot关键词
  kw    slot cars                       2.50 → 2.55    up    acos=28.0%   cost=400.28   clicks=264
  kw    slot car set                    1.50 → 1.45    down  acos=60.5%   cost=60.53    clicks=51
  kw    carrera go slot cars            0.30 → 0.28    down  acos=80.1%   cost=64.07    clicks=52

20250521MR出单keywords / 广告组 - 21/05/2025 11:08:59.400
  kw    slot cars                       2.00 → 1.95    down  acos=52.1%   cost=181.81   clicks=94