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.