Astronomy is a very complicated science.
天文学是一个非常复杂的学科。
There are complicated relationships among transportation, society, science and technology, which interacts with each other.
交通运输与社会、科学技术之间存在着复杂的关系，它们之间相互影响，相互制约。
The science of global warming is complicated.
全球变暖的科学很复杂。
The science of global warming is complicated.
全球变暖的科学很复杂。
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