satisfier

n.致满足物；知足者

His two reason is more satisfier. 他有两个颇有说服力的理由。

More and more studenes come to study here each year,and we feei so satisfier when we see gretification on their faces!" 每年都有许多各地地学员在这里学习英语，看到学员脸上洋溢着学有所成的喜悦，是我们最欣慰的一刻！