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MX  门槛=20%  门=cost>80  步长 up=0.3 down=0.3  条数=5
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20230610_ManalPromotion / Slot car race set词组
  kw    pista carros electrica          0.44 → 0.48    up    acos=15.8%   cost=332.27   clicks=84
  kw    autopista electrica             8.10 → 8.40    up    acos=16.1%   cost=265.65   clicks=90

SP Campaign Recommendation - Suggested Products - 03/30/2022 a70a69 / AGM MASTECH - Slot Cars/Racing
  kw    agm                            18.80 → 16.40   down  acos=72.9%   cost=1786.95  clicks=1037
  kw    agm mastech                    26.60 → 24.20   down  acos=inf     cost=542.89   clicks=195

20230610_ManalPromotion / Slot car race set精准
  kw    agm                             3.17 → 2.27    down  acos=inf     cost=94.82    clicks=140