あっても気づかない。
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この間、ビルの下を三往復くらいしてしまった。ビルに目的の看板がちゃんと出ているのに、気づけない。そのビルを見上げているのに。なぜ。
For example. There is an office where I'd like to go but I cannot find it.
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A week ago, I was looking for the building and I looked around for 5 minutes. There was a signboard on the building but I didn't notice it, as I looked up the building.
*not sure about my English...