英语翻译astateofbeingcertaineitherthatahypothesisorpredictioniscorrectorthatachosencourseofactionisthebestormosteffective.Self-confidenceishavingconfidenceinoneselfVoicequalitiesthatcontributetoyourimage:Tone

Question

英语翻译
a state of being certain either that a hypothesis or prediction is correct
or that a chosen course of action is the best or most effective.
Self-confidence is having confidence in oneself
Voice qualities that contribute to your image:
Tone of voice
Rate of speech (tempo)
Volume
Ability to pronounce (diction)
How you move & carry yourself

Answer 1

一个你能十分确定你的假设、预见都是正确,或者十分确定你选择做事的方式是最好、最有效的状态
自信是自己心中有信心
你发出的声音能帮助塑造你的形象：
声音的音调
声速（音拍）
音量
发音的能力（发声法）
你如何让自己做出行动
估计你在准备一个面试什么的,