困难用英语怎么说

1、困难：difficulty；difficult；hard；trouble；bump；rub。

2、例句：I now know that its not always easy to see what should be done and even harder actually to do it.现在我知道，认识到什么是应该做的并不容易，而真正去做就更加困难了。

3、Some users may be unable to see, move a mouse, or may face any number of challenges when using a computer.在使用电脑时，有些用户也许无法看见或无法移动鼠标，或者会面临很多其他困难。