1 attach sth (to sth) to fasten or join sth to sth 系上；附上；连接: I attached a label to each bag. 我在每个袋子上系上标签。 [OPP] detach 反义词为 detach

2 (usually passive 通常用于被动语态) attach sb/sth to sb/sth to make sb/sth join or belong to sb/sth 使加入；使隶属于: The research centre is attached to the university. 研究中心隶属于那所大学。

3 attach sth to sb/sth to think that sth has a particular quality 认为…有某种特性: Don't attach too much importance to what they say. 不要过分重视他们的话。