While the exterior noise is mainly from the traffic, of which motorcycle noise is the most antipathic noise to students.

而室外噪声以交通噪声为主，其中摩托车噪声是学生最不愿意听到的。

While in natural language, "or... or..." can also expresses antipathic propositions which can be distinguished from such aspects as semanteme and symbols.

其实在自然语言中，“或者……或者”也表达不相容选言命题，可以从语义、标志等方面来进行区分。