(especially of an examination) oral rather than written
（尤指考试）口头的。
orally rather than in writing
口头地。
(亦作viva)
Brit. an oral examination, typically for an academic qualification
〈英〉（尤指为取得学术资格的）口试。
词源
mid 16th cent.: from medieval Latin， literally 'with the living voice'.