out of a clear sky

• adv. 突然；出乎意外地

out of a clear sky的用法和样例：

例句

用作副词 (adv.)

1. Life seemed all of a sudden empty and meaningless.
   生活突然显得一片空虚，毫无意义。
2. A blast of the trumpet gave her a start.
   突然发出的喇叭声吓了她一跳。
3. Eugenie opened the box with a thrill of pleasure.
   欧也妮揭开匣子，感到一种出乎意外的快乐。
4. The admiral, a surprisingly small man, held out a small scrubbed hand.
   上将的个子小得出乎意外，他伸出一只干净的小手。