Yttrium

Yttrium ( yǐ) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Y, ngièn-chṳ́ su-muk he 39.

Chhâm-kháu chṳ̂-liau

Category:Fa-ho̍k ngièn-su