Which one you use is mostly a matter of preference, although a hundred appears more frequently than one hundred. So when you say a feature of my work or one. There is also another form, an hundred, which was common in the past, but.
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The difference is that one puts more emphasis on the number such as i have 4 computers and a printer/i have 4 computers and only one printer. 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎凭借认真、专业. 我买的电脑自带office 已激活，好像是永久的 这个onedrive自动备份，我打游戏老是跳ping 平时文件处理也比较少，有必要留着这个东西不 显示全部 关注者 12
You typically wouldn't use either phrase for meetings.
Recently i've come across sentences that doesn't have one in it and it looks like odd to me because i'm used to say which one.? the sentences must be correct because they are.
