self-possessed
adj. 镇静的; 冷静的; 沉着的; 有自制力的
Someone who is self-possessed is calm and confident and in control of their emotions.
She is clearly the most articulate and self-possessed member of her family.
显然,她是全家口才最好、最沉着冷静的人。
1. in full control of your faculties;
Lawyer Dai is sedate and self - possessed , sober - minded , steadfast , innovative, and never contented with her achievements.
戴律师性格沉稳冷静,做事喜欢精益求精, 踏实肯干并敢于创新.