Rejoicer
n. rejoice（使高兴）的名词形式
🗣️ 情景例句
Fortunately, they returned safely.
说来幸运，他们平安回家了。
There is a tremendous responsibility involved in raising children.
养育孩子是一桩责任重大的事情。
In a few years the small workshop had become a large factory which employed seven hundred and twenty-eight people.
几年之后，小铺子已经发展成了一个雇有728人的大工厂。