Summary: 'Theory' is a noun referring to a supposition or a system of ideas intended to explain something, or the general principles of a subject.
释义：n. 理论；原理；学说；推测
| 单词 | theory |
|---|---|
| 发音 | ['θɪərɪ] |
| 释义 | n. 理论；原理；学说；推测 |
| 词序 | 921 |
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