序言: preface, introductory remarks, preamble, prelude...
主管: in charge, responsible for, person in charge, manager...
测试: to test (machinery etc), to test (students), test, quiz, exam, beta (software)...
消防: firefighting, fire control...
拥护: to endorse, to support...
等待: to wait, to wait for...
入口: entrance, to import...
彼此: each other, one another...
奏: to play music, to achieve, to present a memorial to the emperor (old)...
笑: laugh, smile...
