他热衷于向朋友们宣传环保的重要性。
He loves to ___proselytize about the importance of environmental protection to his friends.
他在聚会上不断向人们宣传他的政治理念。
He kept ___proselytizing his political beliefs to people at the party.
他在公园里向陌生人宣传他的宗教信仰。
He was ___proselytizing his religious beliefs to strangers in the park.