Operational key

operational ['ɑpə'reʃənl]

adj. 即可使用的;（用于）操作的;经营的;军事行动的;

oper 工作 + ation表名词+ al...的 → 操作上的；可使用的

key [kiː]

n. 钥匙;（打字机等的）键;关键，线索，秘诀;（音乐的）调; vt. 键入;锁上;调节…的音调;提供线索; vi. 使用钥匙; adj. 关键的;主要的;

I was so tired

我太累了

I'll see if she's in.

我去看看她在不在。

I have got some wonderful news to tell you. I have been offered a scholarship at a university in Australia for my further education. One hundred and twenty-five students took exams for it, and I was one of the five to be chosen. However, my parents are tr

我有一些非常好的消息要告诉你。我得到了澳大利亚一所大学提供给我进修的一笔奖学金。为了获得这笔奖学金，125个学生参加了考试，而我是5个被选上的人中的1个。然而，我父母试图阻止我到那里去学习。他们说澳大利亚太远了，他们将一整年见不到我，我会很孤独的。他们建议我改