Or at least,it is clear what your alternatives are; it's not clear which alternative would be any better.

至少就算选择明确;,哪个选择比较好的标准却不明确。

耶鲁公开课 - 死亡课程节选

You have middle dialogues where you have to worry about whose views are whose.

对中期对话作品的鉴别,就比较困难,因为你无法明确观点与人物的对应关系

耶鲁公开课 - 死亡课程节选