The western development is a long term and diffcult process which needs the legal protection in addition to the necessary series of policies.
我国的西部开发是一个长期而艰巨的过程，除了一系列的必要的政策指导外，还需要辅之以系统的法律保障。
We cannot control life's diffcult moments.
我们无法控制生活的艰辛。
Thinking is easy, acting is diffcult, and to put one's thoughts into action is the most diffcult thing in the world.
这句话意思是“想很容易，行动很难，而把想法付诸行动是世界上最难的事。”
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