basic pitch

例句：

1. 1.The basic principles of physics are universally accepted.
   物理学的基本原理被普遍接受。
2. 2. Basic training is essential for a new recruit to succeed in their role.
   基本训练对于新员工在岗位上的成功至关重要。
3. 3. Basic knowledge of English is necessary for communication with foreigners.
   掌握英语基础知识对于与外国人交流是必要的。