The police made an appeal to the public to remain calm.

警方吁请公众保持镇静。

《牛津词典》

Exiled opposition leaders have made an appeal to the international community.

流亡的反对派领导人已呼吁国际社会帮助。

youdao

Today the professor made an appeal saying that he would give the kidnappers his new wonder invention if they would return his son.

今天教授恳求说只要绑匪放了他的儿子，他就把他的新奇发明送给绑匪。

youdao

The representative from the Pacific island nation of Tuvalu made an emotional appeal for a treaty with legal force.

VOA: special.2010.01.19

On Friday,the United Nations made an emergency appeal for more than half a billion dollars.

VOA: special.2010.01.16

The European Union was echoing an appeal made in recent weeks by the United Nations and the international community.

VOA: standard.2009.03.17

Mr Obama made an appeal for "meaningful action" against gun crime in the US shortly after the attack on Friday.

BBC: Newtown shootings: Obama says tragedies must end

Police had also made an appeal to trace a taxi driver who may have picked up three of the suspects.

BBC: Hani Abou El Kheir

His parents and girlfriend have made an appeal for help in catching his killers on the second anniversary of his death.

BBC: Samuel Guidera murder: Parents appeal to help catch killer