a figure representing the difference between credits and debits in an account;当看到“秒杀”这个字眼，相信大家的第一反应是拿起手机，设置好几个闹钟避免错过。
green常用作形容词，但除了表示“绿色”之外，还可以表示因生病、恐惧而脸色发青，发白‘无血色’”，比如，It was a rough crossing and most of the passengers looked distinctly green. 。
WelcomHi [haɪ]嘿，喂，你好I [aɪ]我Be[biː] (am [æm], is [ɪz], are[ɑː])是what [wɒt] 什么your [jɔː] 你的;你们的name [neɪm] 名字hello [həˈləʊ]喂，哈啰，你好my [maɪ]我的go
