difficult

• Sundays were difficult to get through .
  每个星期日都很不容易打发过去。
• This mathematics problem is extremely difficult .
  这道数学题难度很大。
• His work is difficult to label accurately .
  他的工作很难准确归类。
• He found it very difficult to tie the knot .
  在系扣的时候他费了很大劲。
• Yet traditions are difficult to displace .
  但传统习惯却很难改变。
• He deliberately made things difficult for me .
  他有意跟我过不去。
• Communication is a difficult process .
  相互联系是一件困难的工作。
• I do not deny but that it is difficult .
  我不否认这是件困难的事。
• She has had a difficult path through life .
  她生活中有过一段困难的历程。
• I have grasped this difficult truth .
  这个不容易懂的真理我总算弄明白了。