difficult的名词形式没有过去式。difficult的名词形式是difficulty.difficulty：n.困难;难题;难事;困境;艰难;费劲;辛苦;困难程度;难度。复数： difficulties
扩展资料
I think the problem can be got over without too much difficulty.
我认为这个问题不太难解决。
The government had to bail the company out of financial difficulty.
政府只得帮助该公司渡过财政难关。
He found the place without difficulty.
他毫不费力地找到了那地方。
The changes were made with surprisingly little difficulty.
这些变化几乎没有遇到阻力，简直不可思议。
We found the house without difficulty.
我们轻而易举就找到了这栋房子。
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