Of index building is very a Gordian knot.

索引的建立是个很棘手的问题。

Love is cannot explain the contradiction Gordian knot.

爱是无法解释矛盾的死结。

The first day when attend class, encountered a Gordian knot.

上课的第一天就碰到了棘手的问题。

It was she who invented the short cut, who severed the Gordian knot.

正是她找到了捷径，也是她解决了这个难题。

We must try to solve the problem even if it is really a Gordian knot.

纵然这是个解决不了的矛盾，我们也要努力尝试解决问题。