!keep one's cool和keep cool在詞義上有一樣的,也有不同。
keep one's cool中cool為名詞,中文意思是保持冷靜
keep cool中cool為形容詞,中文意思是保持冷靜保持涼爽鎮定自若
In ancient China, hand fans were almost the only ones to help people keep cool.
在古代中國,手扇幾乎是唯一的幫助人們保持涼爽的工具。