Something that you learn by direct seeing is called an observation.

通过直接看到了解到的东西叫做观察。

youdao

As we learn more about the DNA in human cells and how it controls the growth and development of cells, then maybe we can explain a very important observation.

当我们了解了更多关于人类细胞的 DNA，以及它是如何控制细胞的生长和发育的，那么也许我们可以解释一个非常重要的观察结果。

youdao

As soon as children can count, introduce them to money. Take an active role in providing them with information. Observation and repetition are two important ways children learn.

孩子一能数数，就告诉他们钱是啥。积极地告诉他们关于钱的信息。观察和重复是孩子学习的两个最重要的方式。

youdao

All present, including beginners, are invited to join the dance and learn through observation and imitation.

UNESCO: Intangible Cultural Heritage

The Intergovernmental Oceanographic Commission (UNESCO-IOC) promotes international cooperation and coordinates programmes in marine research, services, observation systems, hazard mitigation and capacity development in order to learn more and better manage the nature and resources of the ocean and coastal areas.

UNESCO: EDUCATION

And it also makes the very wise observation that this would be a one-time bit of pillaging since rich people would quickly learn not to earn and report so much income.

FORBES: Dissecting Obama's Record on Tax Policy