Oppe
abbr. Office of Program Planning and Evaluation 程序设计与评估局; Operational Propulsion Plant Examination 作战推进设备检验（美国海军）
🗣️ 情景例句
for giving me a passing grade.
给我及格分数。
Do you often study history on Saturday?
你常常在星期六学历史吗？
He is acting an old man.
他正扮演一个老人。