Priestly means 'like a priest' or 'to do with a priest'. Priestly duties are the work a priest does. Priestly clothes are the special clothes.

Priestly意思是 means 'like a priest'「像祭司一樣」 or 'to do with a priest'或「跟祭司有關」 Priestly duties所謂priestly的職責 are the work a priest does就是祭司做的工作 Priestly clothes priestly的衣服 are the special clothes就是那種特別的服裝

You can also use it about a manner — a priestly calm, a priestly look — when someone seems serious, set apart, or holy in the way people imagine a priest. Writers use it about religion, history, and character.

You can also use it about a manner這個字也可以用來形容一個人的樣子 a priestly calm像是priestly的冷靜 a priestly look或priestly的神情 when someone seems serious, set apart, or holy當一個人看起來嚴肅、超然，或帶點神聖 in the way people imagine a priest就像大家想像中祭司的樣子 Writers use it作家會用這個字 about religion, history, and character來寫宗教、歷史，還有人物

Though actually, the -ly here does not make an adverb. You do not say 'he spoke priestly' to mean 'in a priest's way'; you say 'in a priestly way'. That trips learners, because so many -ly words are adverbs. This one is an adjective, in the same family of shape as friendly or lively.

Though actually不過其實 the -ly here這裡的-ly does not make an adverb並不是拿來構成副詞的 You do not say你不能說 'he spoke priestly'「he spoke priestly」 to mean 'in a priest's way'來表示「用祭司的方式」 you say而要說 'in a priestly way' That trips learners這會讓學習者搞混 because so many -ly words are adverbs因為很多-ly結尾的字都是副詞 This one這個字 is an adjective卻是形容詞 in the same family of shape跟friendly或lively as friendly or lively是同一類