The cold was unbelievable.
天氣冷極了。
The pressure they put us under was unbelievable
他們給我們施加的壓力之大超乎想象。
I find it unbelievable that people can accept this sort of behaviour
人們竟能接受這樣的行為，我震驚不已。
I know it sounds unbelievable but I never wanted to cheat.
我知道聽上去難以置信，但我從不想撒謊。
I still find this story both fascinating and unbelievable
我仍覺得這個故事既有趣又不太可信。