通过将京剧设置为选修课，学生们可以有更多的自由决定是否选修京剧。
By setting Peking Opera as an optional course, students may have more freedom to decide whether to take it or not.
学生可以自由地专注于他们感兴趣的任何主题或学科，并通过互联网深入研究。
Students have the freedom to focus on whatever topic or subject that they are interested in and study it in depth through the internet.
当学生们自由地模仿微笑时，他们的判断不受售货员行为的影响。
When the students were free to mimic the smiles, their judgments were not affected by what the salesclerk was doing.
应用推荐