でなくてなんだろう

この成(せい)績(せき)は努(ど)力(りょく)不(ふ)足(そく)でなくてなんだろうか、才(さい)能(のう)の問(もん)題(だい)ではないか。

• If these grades aren't due to a lack of effort, then what are they? Isn't it a matter of talent?

彼(か)の発(はつ)言(げん)は公(こう)平(へい)でなくてなんだろうか、意(い)図(と)的(てき)な偏(へん)向(こう)があるように思(おも)える。

• What is there to say about his remarks being unfair; it seems as though there is an intentional bias.

この失(しっ)敗(ぱい)は単(たん)なる運(うん)の悪(わる)さでなくてなんだろうか、戦(せん)略(りゃく)の誤(あやま)りではないか。

• What is this failure if not mere bad luck; isn't it a strategic error?

この遅(おく)れは交(こう)通(つう)渋(じゅう)滞(たい)でなくてなんだろうか、何(なに)か事(じ)故(こ)があったのかもしれない。

• If this delay isn't due to traffic congestion, what else could it be? There might have been an accident.

この問(もん)題(だい)は技(ぎ)術(じゅつ)的(てき)な限(げん)界(かい)でなくてなんだろうか、資(し)源(げん)の配(はい)分(ぶん)の問(もん)題(だい)ではないか。

• If this problem isn't due to technical limitations, then what is it? Isn't it a matter of resource allocation?

この失(しっ)敗(ぱい)は単(たん)なる計(けい)算(さん)ミスでなくてなんだろうか、もっと深(ふか)い認(にん)識(しき)の誤(あやま)りがある。

• What is this failure if not a mere calculation error; there is a deeper misconception.

この成(せい)績(せき)は単(たん)なる学(がく)力(りょく)の問(もん)題(だい)でなくてなんだろうか、学(がく)習(しゅう)環(かん)境(きょう)の問(もん)題(だい)かもしれない。

• I wonder what these grades are about if it's not just a matter of academic ability; it might be a problem with the learning environment.

昨日(きのう)の会(かい)議(ぎ)は単(たん)なる情(じょう)報(ほう)共(きょう)有(ゆう)でなくてなんだろうか、何(なに)か決(けっ)定(てい)的(てき)な意(い)見(けん)が出(で)たはずだ。

• What was yesterday's meeting even for, if not just sharing information? There must have been some decisive opinion voiced.

彼(か)の失(しつ)望(ぼう)は仕(し)事(ごと)の成(せい)果(か)でなくてなんだろうか、人(にん)間(げん)関(かん)係(けい)の問(もん)題(だい)が背(はい)景(けい)にあるのだろう。

• If his disappointment isn't about his work performance, what else could it be; there are probably interpersonal issues behind it.

彼(か)の態(たい)度(ど)は冷(れい)淡(たん)でなくてなんだろうか、もしかしたら健(けん)康(こう)状(じょう)態(たい)が悪(わる)いのかもしれない。

• If his attitude isn't cold, then what is it? Perhaps his health is poor.