difficult的名词形式：difficulty；
difficulty是可数的。
例句：
We can overcome any difficulty.
我们能战胜任何困难。
No difficulty can overwhelm us.
困难压不倒我们。
扩展资料
We found the house without difficulty.
我们轻而易举就找到了这栋房子。
He found the place without difficulty.
他毫不费力地找到了那地方。
I was having difficulty in staying awake.
我正困得睁不开眼。
