stalling tactic
noun [ C ] uk/ˈstɔː.lɪŋ ˌtæk.tɪk/ us/ˈstɑː.lɪŋ ˌtæk.tɪk/
拖延战术
something that someone does intentionally in order to delay taking action or prevent someone from doing something for a period of time
The defence asked for more DNA tests, which the prosecution claimed was just a stalling tactic. 辩护方要求做更多的DNA测试，控方称这不过是拖延战术。