英语翻译翻译三句话目前全国的很多厂家日夜忙于生产抗灾产品.( be engaged in ( doing ) 有说服力的

At present, many factories throughout the country are engaged inproducing products against disaster.
Persuasive advertisements help sell the products successfully.
It was our persuasion that made him believe that smiles and acts ofkindness could heal the world.