In the world of science, however, a theory is a broad explanation of a phenomenon or phenomena that is testable, falsifiable and has multiple lines of evidence.

然而，在科学界里，理论是一个现象或多个现象的一种广义解释，它是可检验、可证伪和可以有多重证据的。

youdao

Qualitative approach emphasizes the relationships between behavior, phenomenon and their background, the process of their changes and the meaning that behaviors and phenomena have towards the actors.

定性方法更加注重现象和行为与背景之间的关系，现象和行为的变化过程，现象和行为对于行为主体所具有的意义。

youdao

Tesla's theory states that the phenomena produced by electromagnetic forces is the most important phenomenon in the universe.

特斯拉的理论说，这种现象是由电磁力产生，是宇宙中最重要的现象。

youdao

Through 13 interactive lessons, young people will be encouraged to gain a better understanding of the scientific phenomena underlying climate change and their effects on the environment and to evaluate the human contribution to this phenomenon.

UNESCO: CULTURE