invoking

动词 invoke:

1. summon into action or bring into existence, often as if by magic
   同义词：raise, conjure, conjure up, invoke, evoke, stir, call down, arouse, bring up, put forward, call forth
2. cite as an authority; resort to
   同义词：invoke, appeal
3. request earnestly (something from somebody); ask for aid or protection
   同义词：appeal, invoke

1. The government has invoked the official secret act in having the book banned.
   政府援引国家机密保密法以禁该书。
2. They invoked help in the desperate situation.
   他们在走投无路的情况下恳求援助。