...while those who have do not find the tasks ...

问题描述:

...while those who have do not find the tasks ...
As is known,self-confidence is accompanied by will,and that as a twin,offers hope.Those who do not have a strong will often think themselves unable to carry out any thorny tasks,while
those who have do not find the tasks unsurmountably difficult.
这段话应该怎么翻译?
--who have do not find the tasks..的have起什么作用?

while those who have do not find the tasks unsurmountably difficult.这个句子中,who have 其实后面省略了a strong will,加起来who have a strong will是个定语从句,修饰前面的those,翻译:众所周知,自信和意志如...