[经] best evidence and primary evidence
zuì yōu zhèng jù hé yuán shǐ zhèng jù ㄗㄨㄟˋ ㄧㄡ ㄓㄥˋ ㄐㄩˋ ㄏㄜˊ ㄩㄢˊ ㄕˇ ㄓㄥˋ ㄐㄩˋ