in case you can't understand chinese ,i'll answer u in english vertical is “垂直的” in chinese, horizontal is "水平的" in chinese. so your sentene can be translated like this:我想要一个垂直的和一个水平的旗帜 if u still have some doubts,just comment here :D

我要一个竖版的和一个横版的广告。 Vertical竖的，它的反义词就是horizontal 横的。

vertical = 垂直 = chuí-zhí horizontal = 横地 = héng-dì

vertical means 垂直线 in chinese.

thanks 爱迪生... I guess I'll go for 横 for horizontal and 竖 for vertical, so