一、go up作为不及物动词词组时,有以下几种意思:1.上升;例如:Prices have gone up again.物价又上涨了。2.被建造起来;例如:New factories are going up everywhere.到处在兴建新工厂。3.被焚毁;例如:The whole building went up in flames.整幢楼被焚毁了。二、go up作为及物动词词组时,后面可以跟介词to(go up to 表示靠近、前往)也可以直接跟名词也表示前往例如:Let's go up to town if you are free on Sunday.Let's go up the town if you are free on Sunday.星期天没事,咱们上街吧?