The reason is blindingly obvious.

原因十分明显。

《牛津词典》

It is a glimpse of the blindingly obvious—and there's nothing to back strongly either a hereditary or environmental argument.

这是对显而易见的事实的一瞥，但并没有任何证据能有力支撑遗传或环境的论点。

youdao

Fletcher's abilities are perhaps less blindingly obvious. He is a more subtle talent.

弗莱彻的能力也许不那么明显。他的才华更为内敛。

youdao

Their recommendations range from the blindingly obvious, to the naive and simplistic, to the interesting but underdeveloped.

NPR: Iraq Report Well Received in Washington

Here is the blindingly obvious thing: the UK is not a member of the eurozone.

BBC: Why a eurozone banking union is messy for Britain

The pride Lui Che Woo holds for his eldest son and his recent achievements is blindingly obvious.

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