●ˌtack sth ˈon●ˌtack sth ˈonto sthto add sth to sth that is already there附加◆An update chapter has been tacked on at the end of the latest edition of the manual.最新版手册的末尾附有一章新内容。 () () if a share price tacks on an amount, it increases by that amount股价上扬◆U.S. Electric tacked on 3 per cent to $20.95.美国电气公司股价上扬了 3%，达到 20.95 美元。