求大神帮我分析一下这个句子,谢谢!Although they are officially banned in sport,it is a known fact that many cyclists,basketball and football players use stimulants to make them more competitive.
从句主系表解释下😊
追答although为引导词,they主语,are 系动词,officially ...banned in sport表语
追问好的,谢谢你啦!