| 单词 | introduction |
| 释义 | Word Frequency introduction(ˌɪntrəˈdʌkʃən) noun 1. the act of introducing or fact of being introduced 2. a presentation of one person to another or others 3. a means of presenting a person to another person, group, etc, such as a letter of introduction or reference 4. a preliminary part, as of a book, speech, etc 5. music a. an instrumental passage preceding the entry of a soloist, choir, etc b. an opening passage in a movement or composition that precedes the main material 6. something that has been or is introduced, esp something that is not native to an area,country, etc 7. a basic or elementary work of instruction, reference, etc 8. logic (qualified by the name of an operation) a syntactic rule specifying the conditions under which a formula or statement containing the specified operator may be derived from others conjunction-introduction negation-introduction |
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