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- C调主音C大调音阶中的第一个音或C小调音阶中的第三个音 The first tone in the scale of C major or the third tone in the relative minor scale.
- D音，D调C大调音阶的第二个音或C小调音阶中的第四个音 The second tone in the scale of C major or the fourth tone in the relative minor scale.
- C大调音阶 the scale of C major
- C 大调音阶 the scale of C major
- 大调 major
- c语言
- 音阶 scale
- 维生素C vitamin(e) C
- 半音的，短音程的比相邻两个大调音阶之间的音程少半阶的 less in distance by a half step than the corresponding major interval.
- C语言程序设计 Programming in C
- 半音的,短音程的:比相邻两个大调音阶之间的音程少半阶的。 Less in distance by a half step than the corresponding major interval.
- C程序设计 Program Design in C
- 半音音阶 chromatic scale
- c 语言 C language
- D 大调 the key of D major
- 半音阶 cromatic scale
- 浆果中含有维生素C。 Berries contain vitamin C.
- 半音阶口琴 chromatic harmonica
- 厕所（略W.C） water closet
- 八度音阶 octachord
