次第

例句：

1. 1. The students are learning the order ofoperations in their textbooks.
   学生们正在他们的教科书上学习运算顺序。
2. 2. Theteacher explained the steps tofollow during the experiment.
   老师解释了实验过程中需要遵循的步骤。
3. 3. Thechef carefully arranged the ingredients on the table, following a specific sequence.
   厨师仔细地将食材摆放在桌子上，按照特定的顺序。