°A short, straight, horizontaldiacritical mark placed over a vowel. It usually is used to indicate that the pronunciation of the vowel is long, in Mandarinpinyin (Chinese), it indicates the first tone, e.g. ch?z?ch?.
°A short, straight, horizontaldiacritical mark placed over a vowel. It usually is used to indicate that the pronunciation of the vowel is long, in Mandarinpinyin (Chinese), it indicates the first tone, e.g. ch?z?ch?.