律师让我对每个Skill Requirement写 CAN SOMEONE BE TRAINED TO PERFORM THIS SKILL WITHIN A REASONABLE PERIOD OF TIME? WHY OR WHY NOT? 我当然应该回答No。但是怎么写WHY OR WHY NOT呢?我只会写It is too complicated to be learned within X months。有没有别的可以说?谁能给我几个例子?