在解答數學問題時

在 zaiˋ

Now, Located, In, At, On, By, Alive, Present, Presently

解答 jieˇ daˊ

(Answer to a, Explanation) Answer to a question, Explanation

數學 shuˋ xueˊ

(Math) Math

數學問題 shuˋ xueˊ wenˋ tiˊ

(Math) Math problems

學問 xueˊ wenˋ

(Knowledge, Learning) Knowledge, Learning

問題 wenˋ tiˊ

(Concern, Concerns, Problem, Problems, Question, Questions) Question, Problem, Problems, A problem, The problem, The problems, Questions, A question, The question, The questions, Concern, Concerns, A concern, The concern, The concerns

時 shiˊ

Time, At that time, Fashionable, Sometimes, Era, Season, Epoch