latch /lætʃ/ ► SEE ALLlatch onlatch onto sblatch onlatch onto sth●ˌlatch ˈon●ˌlatch ˈonto sb ( ˌlatch ˈon to sb) (informal) to follow sb around, often when they do not want you with them纠缠；缠住◆He latched onto us and we couldn’t get rid of him. 他缠着我们，甩也甩不掉。[v + adv][v + prep][v + adv + prep]●ˌlatch ˈon●ˌlatch ˈonto sth ( ˌlatch ˈon to sth) 1.to become attached to sth依附；附着在…上◆The virus latches onto the red blood cells. 这种病毒附着在红细胞上。2.to be interested in an idea, a fashion, etc. and use it for your own purposes对…产生兴趣（并加以利用）◆The government have latched onto environmental issues to win votes. 政府大谈环境问题以争取选票。◆They have a reputation for latching onto all the latest crazes. 大家都知道他们对所有的最新时尚都会跟风。◆Young children latch onto phrases and repeat them over and over. 小孩子喜欢成语，还一遍遍地重复。3. (BrE, informal) to understand an idea, what sb is saying, etc.理解；懂得◆It took him a while to latch onto their style of humour. 过了一会儿他才领会他们的幽默风格。◆She soon latched onto the idea. 她很快就领悟了这个想法。◆It was a difficult concept to grasp, but Sam latched on very quickly. 那个概念很难掌握，但萨姆很快就理解了。[v + adv][v + prep][v + adv + prep]