letters of the alphabet written in their large form, for example ‘A' rather than ‘a'. Block capitals are often simply calledcapitals. 大寫字母(通常簡稱爲capitals)
a letter of the alphabet used as a symbol for a consonant. All the letters of the English alphabet are consonants except for ‘a', ‘e', ‘i', ‘o', and ‘u', which are vowels. 輔音字母
one of the letters ‘a', ‘e', ‘i', ‘o', or ‘u', used for representing these sounds. In English, ‘y' is sometimes considered to be a vowel. The other letters are calledconsonants. 元音字母(指用於代表元音發音的字母a, e, i, o, u;英語中的y有時也被認爲是元音字母)