Here is how the vowels are pronounced:
a
As in UK English "can" (short) or UK "father", USA "gone" (long). Examples: "nghap" (short) and "gwlad" (long).
e
As in "let" (short) or Yorkshire/Scottish accent "late" (long) - i.e., like "late" but with no "eee" sound at the end of the vowel. Examples: "phen" (short) and "hen" (long).
i
As in "pit" (short) or "lean" (long). Examples: "mhin" (short) and "llid" (long).
o
As in UK "lot" (short) or Yorkshire/Scottish accent "coat" (long) - i.e., like "coat" but with no "ooo" sound at the end of the vowel. Examples: "siop" (short) and "ffos" (long).

以下是这些元音的发音法:

a

如同英国英语 "can" (短音) 或英国英语"father", 和美英中 "gone" (长音)的发音. 例如: "nghap" (短音) 以及"gwlad" (长音).

e

如同 "let" (短音) 或约克郡/苏格兰口音的 "late" (长音)的发音 - 也就是说, 就像"late"那样发音,但结尾的元音不发"eee" 的音. 如: "phen" (短音)以及 "hen" (长音).

i

如同"pit" (短音) 或"lean" (长音)的发音. 例如: "mhin" (短音) 以及"llid" (长音).

o

如同英国英语 "lot" (短音) 或约克郡/苏格兰口音的"coat" (长音)的发音 -也就是说 , 像"coat" 那样发音,但元音结尾处不发"ooo" 的音. 例如: "siop" (短音) 以及"ffos" (长音).