(1) 扩大(展)(make or become larger) [I，T+n]：His business is～ing. 他的生意正在扩大。His interests have recently～d. 最近他的兴趣增加了。The city has greatly～d in recent years. 最近几年这座城市扩大了许多。～a hole/a garden/a room/a lawn/one's personal fortunes/the scope of one's activities 扩大洞穴/花园/房间/草坪/个人财富/活动范围;～a staff by engaging six new people 招收六位新人来扩大员工队伍; The hotel is being～d to accommodate more guests. 那家宾馆正在扩建以便接待更多的旅客。The factory was～d to make room for new machines. 工厂扩建以安放更多的新机器。The dictionary has been～d to 100，000 words. 那本词典扩大到10万个单词。Good reading～s one's mind. 读好书可开阔眼界。an～d edition/meeting 增订版/扩大会议; 〖同〗 increase，expand，extend，grow，develop，broaden; 〖反〗 decrease，reduce，diminish，lessen;

(2) 放大(照片等) (make sth larger than the original) [I，T+n]： The photograph probably won't～well. 这张照片放大的效果也许不会很好。～a photograph 放大照片; I want this photograph～d. 我想把这张照片放大。The magnifying glass～s the image fifty times. 放大镜可以将图像放大50倍。〖同〗 magnify; 〖反〗 contract，reduce;

(3)详(评)述(discuss or analyze in greater detail; expand) [I+prep (on/upon)]：～on (upon) one's suggestions/on (upon) this point/on (upon) one's original statement/on (upon) holiday plans/on (upon) what one has said 详述某人的建议/这一点/最初的声明/假日计划/所说过的话; 〖同〗expand，amplify，elaborate，expound;〖反〗 condense，abridge，abbreviate，narrow;

→en′larger n 放大机;en′largement n 扩大，放大