unique 前面用a定an??

Should be "a unique"... When "u" word is pronounced as though it begins with a "y" (yoo nique)
it's treated more like the consonant sound of the "y". So
"a university
" "an umbrella"
"a usual day"
"an unusual day." Hope it helps.
用a先系correct 因为unique发的音系yoo
唔系我地一般读umbrella
unusual既un音 正如我地会读a university
not an university an hour也是同样原理
参考: me
因为a
e
i
o
u 所以unique系an
参考: me

扩展阅读：a useful book ... an unique style ... an unique 还是a ... yacht ... a unique view ... university ... a unique range of ... 什么时候用a an ... 前面用an的12个字母 ...