out of a clear sky的用法和樣例：
例句
用作副詞 (adv.)
- Life seemed all of a sudden empty and meaningless.
生活突然顯得一片空虛，毫無意義。 - A blast of the trumpet gave her a start.
突然發出的喇叭聲嚇了她一跳。 - Eugenie opened the box with a thrill of pleasure.
歐也妮揭開匣子，感到一種出乎意外的快樂。 - The admiral, a surprisingly small man, held out a small scrubbed hand.
上將的個子小得出乎意外，他伸出一隻乾淨的小手。
