一日一记：How to say 'a' in italian

Use un with nearly all masculine words. Most masculine words end in -o. use una with feminine words, it shortens to un' before a vowel. most words ending in -a are feminine.
翻译过来就是，在绝大部分阳性名词前用un表示a，大多数的阳性词都以o结尾。在阴性名词前用una表示a，名词如果以元音开头，则una简写为un‘，大部分阴性词都以a结尾