smiler

She is a smiler, so her passport photo looks friendly.

用法提示：“smiler”作单数名词，指“微笑/爱笑的人”，在句中作表语。

The smilers in the office make the morning meetings less stressful.

用法提示：“smilers”是“smiler”的复数形式，作主语，指一群爱笑的人。

Even as a smiler, he sometimes feels nervous before a speech.

用法提示：“smiler”作名词，在介词短语中表示“爱笑的人”这一身份。