摘要： Some useful words connected with Computer Science.mandatory /ˈmændəˌtɔri/ adj. <that you must do, have, obey, etc.> 强制的；必须做、有或服从的e.g.: The crime carries a mandatory life sectence.Why This: /etc/gconf/gconf.xml.mandatorydemon /ˈdiːmən/ n[C] <an evil spirit> 魔鬼，恶魔daemon /ˈdeɪmən/ n[C] 阅读全文