Doctor of Philosophy:
Doctor of Philosophy, abbreviated as PhD, Ph.D., D.Phil., or DPhil in English-speaking countries and originally as Dr.Philos. or Dr.Phil. (for the Latin "philosophiae doctor" or "doctor philosophiae"), is in many countries a postgraduate academic degree awarded by universities.
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哲學博士:
哲學博士（Philosophiæ Doctor，Doctor of Philosophy，簡稱 Ph.D. 或 D.Phil.），高級學銜之一，通常是學歷架構中最高級的學銜。
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Doctor of Philosophy哲學博士