stiffly formal and respectable; feeling or showing disapproval of anything regarded as improper
拘谨的,古板的;一本正经的
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a very prim and proper lady .一位循规蹈矩非常古板的女士。
purse (the mouth or lips) into a prim expression
抿(嘴,唇)显出一本正经的表情
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Laurie primmed up his mouth .劳里抿着嘴。
"late 17th cent. (as a verb): probably ultimately from Old French