ph.造句

two ph. d. theses attest to the results of his work .
有两篇哲学博士论文论证了他的研究结果。
he always drags his ph. d. into every discussion .
他讨论发言的时候总是要生拉硬扯到他的哲学博士头衔。
years of study are required before one gets a ph. d. (doctor of philosophy)degree, or a ll.d(doctor of laws)degree .
要经过多年学习才能获得哲学博士学位或法学博士学位。
It's difficult to find ph. in a sentence. 用ph.造句挺难的