One common theory, for instance, is that we are shaped by our parents.

一个常见的理论,例如,是我们的父母塑造了我们的人格

耶鲁公开课 - 心理学导论课程节选

For instance, the evolutionary theory bases its evidence on the fossil record.

FORBES: Why Bill Nye Is Right To Warn Against Creationism

For instance, balance is great in theory, but the idea of carving pieces of our lives into equal portions is unrealistic.

FORBES: For Work-Life Happiness: Stop Balancing, Start Leaning In

Some physicists would rather fiddle with Einstein's theory of relativity, for instance by making gravity weaker at extremely long ranges.

ECONOMIST: Cosmology