sen·ti·men·tal·ism /ˌsɛntəˈmɛntḷˌɪzəm/
感情主義
Sen·ti·men·tal·ism n. The quality of being sentimental; the character or behavior of a sentimentalist; sentimentality.
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sentimentalism
n 1: a sentimental expression or idea
2: a predilection for sentimentality