1. 镇静,沉着：14. provisionally 暂时的,临时的 | 15. aplomb 镇静,沉着 | 16. restraint 抑制,克制,谨慎

2. 沉着：aplite 半花岗岩 | aplomb 沉着 | apnea 窒息

3. aplomb的解释

3. 沉着,镇静：limb 肢,臂,翼;树枝 | aplomb 沉着,镇静 | hecatomb 大屠杀,百牛大祭

1. 沉着;镇定;从容不迫;泰然自若
    If you do something with aplomb, you do it with confidence in a relaxed way.

    e.g. The whole cast executed the production with truly professional aplomb.
           全体演职人员以一种真正的专业精神，从容不迫地开始了影片的制作。

1. great coolness and composure under strain

    e.g. keep your cool

    Synonym: assurednesscoolpoisesang-froid