"从容"用英语可以表达为 "calm" 或 "composed". 这个词源于拉丁语"calmus"，意思是"平静的"。例句如下：

She remained calm and composed even in the face of adversity. 即使面对逆境，她依然保持镇静。

He spoke in a calm and measured tone. 他用平静而沉着的语气说话。

She remained composed and collected even as the room filled with chaos. 即使房间里陷入混乱，她依然保持镇定。