1. It would be unthinkable to ask him to do that.
   叫他做那套事是全無可能的。
2. Only the effort of the group can make some unthinkable become thinkable.
   用戶 的奮力把一套必須能的事變成或者的。
3. That this project would achieve ultimate success was unthinkable at the time.
   在這個大型項目能榮獲結果的成功創業在時候對大家認為是不易置信的。
4. The stars are an unthinkable distance from the earth.
   恒星和太陽系的長距離是難于假如的。