1、He is a renowned rosarian and has won multiple awards for his beautiful rose gardens.（他是一位享誉世界的玫瑰栽培家，因其美丽的玫瑰花园而获得了多项奖项。）

2、The rosarian shared his expert insights on how to properly care for and maintain rose bushes.（这位玫瑰栽培家分享了他的专业见解，教授如何正确地照料和养护玫瑰灌木。）