doctorate of philosophy(PhD)的用法和樣例：
例句
- He earned his doctorate in philosophy.
他獲得了哲學(xué)博士學(xué)位。 - Mr.Jones spent his undergraduate days at Columbia, went on to get his master's degree from Harvard, and a Ph.D.Doctor of Philosophy from Yale.
瓊斯先生在哥倫比亞大學(xué)渡過(guò)了他的大學(xué)時(shí)代，繼而在哈佛大學(xué)取得了學(xué)士學(xué)位，在耶魯大學(xué)攻讀了哲學(xué)博士學(xué)位。
