principles and techniques

• 原理与技巧

principles and techniques的用法和样例：

例句

1. Don't snap and snarl at me when I'm trying to do my best for you.
   掌握一些翻译理论与技巧。
2. This course will greatly enhance our confidence in tutoring online and help us master relevant effective methods and techniques.
   本门课程将极大增强大家进行在线学习辅导的信心并帮助大家掌握相关的行之有效的方法与技巧。