theory
🇺🇸
/ˈθiːəri/
🇬🇧
/ˈθɪəri/
noun
B1
A set of ideas that tries to explain something.
The theory says that the Earth goes around the Sun.
該理論認為地球繞著太陽轉。
B1
The basic ideas that a subject is built on.
We learned the theory of how airplanes fly.
我們學習了飛機如何飛行的理論。
B1
An idea that someone thinks is true but hasn't been proven yet.
The detective had a theory about who did the crime.
偵探對誰犯了罪有一個理論。
translation
理論, 原則, 假設
詞形變化
Plural
theories