在现实世界研究微笑不难。

You could — It's not difficult to study smiles in the real world.

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在这一领域，根据最新的世界研究趋势，研究小组已经进行了多项关于遗传标记和环境相互作用的研究。

In this field, the research group is working on several studies on the interaction between genetic markers and the environment, according to the latest research trends worldwide.

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自然哲学涉及到了对包括有生命体与无生命体的物质世界的全面研究。

Natural philosophy involved the study of all aspects of the material world, animate and inanimate.

《柯林斯英汉双解大词典》

in a positive world bettering sort of way, or is that merely sort of nonsense to think about?

能够积极地改进这个世界，还是说他们的研究都是空洞的东西呢？

普林斯顿公开课 - 人性课程节选

It's actually kind of a crusade of mine-- I believe that the world needs more portfolio diversification.

事实上，这是我长期研究的一个方向-,我认为，世界需要更多元化的投资组合。

耶鲁公开课 - 金融市场课程节选

Now, this research suggests that infants' understanding of the physical world is there from the very start, but at the same time not entirely.

这个研究表明,婴儿从出生,就对物质世界有所理解,但同时这种理解并不完善

耶鲁公开课 - 心理学导论课程节选