Hello,little kids.今天啊,时间爷爷带着他的三个“介词”小孙女at,on,in来我们这儿做客啦。听,三个小家伙正唧唧喳喳地在作自我介绍呢!1.at我是小妹at,你们别看我最小,我的作用可大啦:1.表示某一具体时刻。如:at six o’clock在6点at half past nine在9点半at the moment此刻at the same time同时 Hello, little kids. Today, my grandfather took his three prepositions. Listen, three little guys are twittering for self introduction! 1.at I am a young girl at, you do not look at me the smallest, my role can be big friends: 1. Express a specific moment. At six o’clock at six o’clock at half past nine at half past nine at the moment at the same time at the same time