tunnel vision視野狹隘；井蛙之見。tunnel是「隧道"，想像自己站在隧道的一端，往另一端出口看過去，是不是只看到一塊很小的視野呢？tunnel vision這個習語用來形容一個人「只看到事情的一面，無法全方位看待整件事情"
看看老外聊天時怎麼用tunnel vision：
Carl: I think Lisa is too pessimistic and has tunnel vision about everything.
Fanny: I feel the same way. Jack told me that she has some mental problems.
Carl: I hope that she can get some help.
Fanny: Actually, Jack has suggested to her that she see a shrink.
Carl: Good. I hope she follows his advice.
卡爾：我覺得莉薩太悲觀，視野太狹隘。
範妮：我也這麼覺得，傑克覺得她的心理有問題。
卡爾：我希望她能夠尋求一些幫助。
範妮：事實上，傑克已經建議她去看心理醫生了。
卡爾：太好了，我希望她能採納他的建議去看醫生。
tunnel vision例句精選：
You get tunnel vision and you interact in a way that almost always makes your situation worse.
你的視野變得狹窄，你的處世方式也受到影響，這些是你的處境更糟。
Some businessmen cannot adapt to change because they have tunnel vision.
有些生意人因為見識狹窄，不能順應局勢的變化。
It simply means you need to get rid of your tunnel vision and start searching in other directions.
這僅僅說明你不能做「井底之蛙」，而需要朝其它方向搜索。
In addition to everything else, remember that you must strive at all times not to fall into a state of "tunnel vision".
除了任何東西外，記住你必須時刻努力不要陷入視野狹隘的狀態。
拓展學習：
outlooke 視野
comprehensive 全面性的
extensive 廣大的；廣闊的
a frog in the well 井底之蛙
open the doors wide on every side 全方位看待