1、without a basis in reason or fact.
原因或事實上缺乏根據(jù)的。

2、It is not in reason to ask him to do such a job
讓他去從事這種工作是不合常情的。

3、It was with these great revelations that a new kind of philosophy founded in reason was born.
正是由于這些偉大的思想啟示，一種建立在理性基礎(chǔ)之上的新哲學(xué)誕生了。

4、It is not in reason to ask him to do such a job.
讓他去從事這種工作是不合常情的。

in reason翻譯