system of non-homogeneous linear equations

例句：

1. 1. The system of checks and balancesis designed to prevent corruption.
   三权分立的制度旨在防止腐败。
2. 2. The newsystem will require significant changes in the waywe work.
   新的制度将要求我们工作方式的重大改变。
3. 3. The system of grading students based on their performance has beencriticized for unfairness.
   根据学生表现进行评分的制度因不公平而受到批评。