免费: free (of charge)...
一番: some; one time...
提问: to question, to quiz, to grill...
开销: to pay (expenses), expenses, (old) to dismiss (an employee)...
下坠: (of objects) to fall, to drop, to droop, (medicine) to experience tenesmus...
槐树: locust tree (Sophora japonica)...
激化: to intensify...
谜语: riddle, conundrum...
病房: ward (of a hospital), sickroom...
