是mannerly梗，梗manner+后缀ly，中文意思是adj. 彬彬有礼的客气的，adv. 客气地彬彬有礼地！例如

You are so mannerly though - always holding doors open for teachers， speaking with formal words - that we will take you on as a student.

因为你彬彬有礼——总是为老师开门，说话很有礼貌，我们才录取你。