Definition: when a lot of people are asked to give money, information or help urgently Level: C1
该慈善机构发起了紧急援助呼吁。
The charity launched an ___appeal for emergency aid.
警方发布了一份面向公众的信息征集呼吁。
The police issued a public ___appeal for information.
当地的一项呼吁已为这家医院筹集了数千英镑。
A local ___appeal has raised thousands for the hospital.
