PhD graduates do at least earn more than those with a bachelor's degree.(博士學位獲得者至少比學士學位獲得者賺得多。)

Instead, Green persuaded him to study for a PhD.(他勸說我繼續攻讀哲學博士學位。)

De Broglie, 1924, in his PhD thesis says, if an electron has wave-like properties, this would be its wavelength.(1924年德布羅意在他的博士畢業論文中說道，如果一個電子具有類似波的性質，這就是它的波長。)

And finally he decided to pursue a PhD in physics.(最終他選擇考物理學博士。)

A PhD in psychology, Szymanski is a self-diagnosed perfectionist.(西曼斯基是一位心理學博士，并且自認是一位完美主義者。)

First PhD in astronomy.(第一個拿到天文學學位的人。)

He holds PhD and MBA degrees from the University of Hawaii.(他擁有夏威夷大學的博士和MBA學位。)

Cautions Robert D. Enright, PhD.(羅伯特·d·恩賴特博士警告道。)

By Rick Nauert PhD Senior News editor.(高級新聞編里克nauert博士。)

Over six years, he earned his third masters and a PhD.(他用六年時間獲得了第三個碩士學位和一個博士學位。)