/ə'sɪdjʊəs/;/ə'sɪdʒʊəs/ a. Syn. diligent; persistent (勤奋) constant in application or attention; diligent; unceasing or persistent He was assiduous, working at this task for weeks before he felt satisfied with his results.
/dɪ'skɜrsɪv/ a. (散漫的,不得要领的) tending to depart from main point or cover a wide range of subjects As the lecturer wandered from topic to topic, we wondered what if any point there was to his discursive remarks.
/'ɛksɪkrəb(ə)l/ a. (非常糟糕的) very bad; extremely inferiorl; intolerable; very hateful The anecdote was in such execrable taste that it revolted the audience.