as a matter of doctrine
a systematic investigation of a matter of public interest
n an instance of questioning n a search for knowledge n a systematic investigation of a matter of public interest
the pursuit of pleasure as a matter of ethical principle n
n a search for knowledge n an instance of questioning n a systematic investigation of a matter of public interest
a matter of course
理所当然的事
a matter of great account
一件很重要的事
a matter of life and death
生死攸关的事
a matter of opinion
看法不同的问题
a matter of record
有案可查的事
as a matter of fact
事实上
