theory
UK/'θiәri/US
NGSL 1kIELTSB1
Definitions
n.
A systematic set of ideas that explains observed facts and makes predictions; an unproven idea or hypothesis.
解释观察到的事实并做出预测的系统性思想体系；未经证实的想法或假说。
Root Breakdown
Root-derivedCommon Collocations
- 1.scientific theory科学理论
- 2.music theory音乐理论
- 3.in theory理论上
Example Sentences
- 1.
Einstein's theory of relativity changed physics forever.
- 2.
In theory, the plan sounds good, but we need to test it.