qua

prep.

作为，以…的身份或资格；苍鸭；

sine qua non（拉）必要条件；要素

1. Qua literature the work is negligible.
   就文学本身而论，这本著作不是很重要。
2. Money, qua money, cannot provide happiness.
   钱本身不能给人以快乐。
3. He did it not qua father, but qua judge.
   他不是用父亲身份而是用法官身份处理此事的。
4. Patience is a sine qua non for a good teacher.
   做个优秀教师必不可少的条件是要有耐心。

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