in a way that is influenced by or relates to emotional feelings, especially about the past

He had sentimentally filled the cupboard with his mother's small treasures. 他感情用事地在橱柜里装满了他母亲的小宝贝。

I'm not materialistic and I try not to get sentimentally attached to anything. 我不拜金，也尽量不因任何事物感情用事。

in a way that gives too much importance to emotions, especially love or sadness

Stop talking sentimentally, my dear. 别再多愁善感了，我亲爱的。

The film portrays the relationship so sentimentally that it becomes irritating. 这部电影把情感描绘得太多愁善感，让人很不舒服。