动词不定式中to do 中to的词性,肯定不是介词,介词后应是doing,每个单词...答:solution to problem,response to inquiry,reaction to proposal,reply to letter 2:表示建筑构件的词汇,如: entry,entrance,approach,access,passage,exit,vent,path the approach to a bridge引桥 the approach to science Half of the population was estimated to have no access to the health ...