bolt-on
adjective[before noun]
uk/ˈbəʊlt.ɒn/us/ˈboʊlt.ɑːn/addedto amainproduct,service, orplanas asmaller,extrapartorfeature,especiallyinbusiness
（尤指商业领域中）附加的，附带的
Davidow said thebusinesswouldcontinueto make bolt-onacquisitions.达维多创投公司表示还将继续进行附带性收购。