这景象令人难以置信。

The sight is ___unbelievable.

她能在10秒内解开魔方，真是难以置信！

It's ___unbelievable that she can solve the Rubik's cube in 10 seconds!

这家餐厅的食物简直太棒了！

The food at this restaurant is ___unbelievable!

她讲的那个故事太离谱了，简直难以置信。

The story she told was so outrageous that it was completely ___unbelievable.