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ドリルダウンじゃなかったです
dorirudaunjanakattadesu

敬
Noun
, 
Desu Copula

The polite, past negative form of ドリルダウン

1. Wasn't drilling down.; Didn't drill down.

Past/Perfective
, 
Negative
, 
Polite
, 
Casual Register
, 
Computing