oral
/ˈɔ:rəl; `ɔrəl/ adj
1 not written; spoken 口头的; 口述的
an oral examination 口试
stories passed on by oral tradition, ie from one generation to the next without being written down 口头流传的故事.
2 of, by or for the mouth 口的; 用口的; 口用的: oral hygiene 口腔卫生
oral contraceptives 口服避孕药. oral, n oral examination 口试
He failed the oral. 他口试不及格.