俚语1：out of the blue
英文解释：if something happens out of the blue, it happens suddenly and you are not expecting it
突然地；意外地
例句：The news of her marriage came out of the blue.
她结婚的消息来得很突然。
俚语2：in no time flat
英文释义：very quickly; in much less time than expected.
[口语]马上，迅速地，在尽可能短的时间内
例句：When the store offered free ice cream, the children were there in no time flat.
那家店供应免费的冰淇淋,小孩们立即前往那里。
