cos英 [kɔs]美 [kɔs, kɑs]意思：余弦；动漫角色扮演；以太网上用服务类别；Certificate of Suitability 指的是欧洲药典适用性认证双语例句1.Can I just ask something 'cos I'm really quite interested in this.我能不能问个问题，因为我对这个真的很感兴趣。

来自柯林斯例句2.They wouldn't serve me in any pubs 'cos I looked too young.这些酒吧都不让我进，因为我看上去太小了。