.45个基本介词的用法1、about【原始含义】a-b-out “A在B外面”【引申含义】prep （1）在到处，在各处 here and there eg: We wandered about the town for an hour or so. He looked about the room.（2）在附近 next to a place eg. She lives about the office. （3）关于 in connection witheg: a book about English studyI dont know what you are talking about. adv （1）大约 close to eg: We left there about 10 oclock. It costs about 500 dollars. （2
