/ʃ/, /j/, /w/ are semi vowels.( )
举一反三
- According to the shape of the lips, vowels can be classified into close vowels, semi-close vowels, semi-open vowels and open vowels. A: 正确 B: 错误
- 中国大学MOOC: In the following vowels, are back vowels.
- 中国大学MOOC:"In the following groups of vowels, are mid vowels.";
- 中国大学MOOC:" In the following groups of vowels, are not all front vowels.";
- 中国大学MOOC: Pure vowels can be classified into three categories: front vowels, central vowels and back vowels. The two vowels/ɜː/ and /ə/ are classified into ______ vowels because they are made with the middle part of the tongue being raised.