call ·phrasal verb
Definition: to ask someone in a formal way to do something Level: C1
他呼吁反叛者停止战斗。
He ___called ___on the rebels to stop fighting.
我在当地报纸《领导者》上看到一则广告，呼吁该地区的居民帮助执行一个清理当地环境的项目。
I saw an advertisement in the local newspaper, The Leader, ___calling ___on residents in this area to help carry out a project to clean up the local environment.
委员会呼吁公司采取可持续的做法。
The committee ___called ___on the companies to adopt sustainable practices.