最近这段时间，我感到未来一片茫然。
In recent days, I feel uncertain about the future.
在布莱克教授的讨论上我是一片茫然。
I'm all at sea about Professor Black's lectures.
当我想做决定时，一片茫然，不知所措！
When I want a decision, a loss what to do!
她的`脸上是一片茫然的神色。
She has a vacant look on her face.
我简直是一片茫然，我无法理解这个问题。
I'm all at sea. I can't understand that problem.
心里一片茫然想了很多多无关紧要的东西。
In many more oblivious to want something insignificant.
她打量着周围像迷宫一般的城市市容。仍然感到一片茫然。
She still looked about her upon the great maze of the city without understanding.
经济展一片茫然。
The economic outlook is hazy.