be combined

be combined combined combined Theory must be combined with practice.理论必须联系实际.请教这里为什么用过去分词combined? Combined with combined incidence combined是什么意思 combined pollutant 英语翻译Efforts should be combined to bring the evil trend control It's thought very important that theory should be combined with practice? combined transformer是什么意思 countries combined是什么意思 combined deamination是什么意思 combined events什么意思 Combined Promotion什么意思 if your knowledge can be in some way( ) with my experience ,we are sure to succeed.a joinedb united c connected d combined 选哪一个 theory must be combined with practice.为什么要用with.我查了一下combine是及物动词.可以直接带宾语呀 if your knowlage can be in some way ___with my experience,we are sure to succeed.选d吗A joinedB unitedC connected D combined