The China's problem is complicated, so our mind should also be complicated.

中国的问题是复杂的，我们的脑子也要复杂一点。

youdao

This problem is complicated and controversial in practice as well as in theory.

这不仅是实践上一个十分复杂的问题，而且在理论上也是颇多争议。

youdao

The armaments transportation problem is complicated and various. How to build the mathematical model is the key that seeking majorized scheme.

军事装备中的运输问题复杂多样，如何建立数学模型是寻求优化方案的关键。

youdao

Hobrooke admits is a very complicated and difficult problem to address.

VOA: standard.2009.06.15

Now, as I said last time, the subject of free will--or free will, determinism, causation and responsibility, this cluster of problems-- is an extremely difficult and complicated physical problem.

正如我上次所说的,自由意志这个主题 或者说自由意志,决定论,因果论,责任,这一堆问题,是极端困难和复杂的物理问题

耶鲁公开课 - 死亡课程节选

This is so obvious in this problem, but when you see more complicated formula, you may not know all the assumptions that went into the derivation and quite often you will be using it when you shouldn't.

在这道题中这些都很明显,但是当我们用更复杂的公式时,你可能搞不清楚所有,在推导时的前提,因此很多时候,你都会用错公式

耶鲁公开课 - 基础物理课程节选

But, as Kirchhoff described to me in an interview last week, the problem is complicated by the fact that there are multiple systems at play that impact what we eat.

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If your financial problem is complicated and requires a full financial planning analysis, you may want to see if your employer offers a phone based financial counseling through a financial education company, where you can call and get immediate access to actual financial planners who are employed full time as educators.

FORBES: Financial Planning for Free: What's the Catch?

And often this problem is further complicated by issues of tribal rivalries and ethnic problems between various areas.

NPR: Afghanistan Update: New Offensive Targets Taliban