VOA一分鐘英語：Tunnel vision

Tunnel vision 視野狹窄
Welcome to English in a Minute!
歡迎來到《一分鐘英語》。
Tunnels are long and dark.If you drive a car through one, you have to keep your headlights on to see.
隧道又長又黑。如果開車穿過隧道，你必須開著車頭燈才行。
So,is this what tunnel vision means?
所以，這就是tunnel vision 的意思嗎?
Dan,I heard that you're supporting that awful local official who's involved in two...no,wait three,scandals?!
丹，我聽說你在支持一個可怕的地方官員，他卷入了兩起…不,等等，是三起丑聞? !
Well,that awful local official fixed the sidewalk outside my house. So,yeah. I support him.
那個討厭的地方官員修了我家外面的人行道。所以,是的。我支持他。
Dan,that is some serious tunnel vision, dude.
丹，你視野太狹窄了，伙計。
As an idiom,tunnel vision means to have a very narrow viewpoint.Pepole with tunnel vision are extremely focused on one thing or part of one thing.
作為習(xí)語，tunnel vision 指的是視野狹窄。視野狹窄的人極度專注于一件事或一件事的一部分。
They ignore everything else that may be just as important.
他們忽略了其他可能同樣重要的事情。