单词详解

n.

学说， 理论， 原理， 推测

(a well-substantiated explanation of some aspect of the natural world)

Nothing can travel faster than light according to the theory of relativity.

根据相对论，没什么比光运行得快。

In theory, this washing machine can run for 10 years or more.

按理来说，这台洗衣机能运行10年或更久些。

相关词组

in theory 在理论上

Your suggestion sounds good in theory, but have you really thought it completely?

你的建议在理论上听起来不错，但你完全认真考虑过吗？

相关单词

复数： theories

反义词：practice