Jmb
abbr. Joint Matriculation Board<英>（大学的）入学考试联合委员会
🗣️ 情景例句
Come on, Sam ...
好啦， Sam……
Look before you leap. First think, then act.
三思而后行。
People who work in offices are frequently referred to as white-collar workers' for the simple reason that they usually wear a collar and tie to go to work.
坐办公室的之所以常常被称作“白领工人”，就是因为他们通常是穿着硬领白衬衫，系着领带去上班。