"as, in the capacity of," from Latin qua "where? on which side? at which place? which way? in what direction?" figuratively "how? in what manner? by what method?; to what extent? in what degree?" correlative pronominal adverb of place, from PIE *kwo-, stem of relative and interrogative pronouns (source also of Old English hwa "who;" see who).
雙語例句
1. Successful agricultural reform is also a sine qua non of Mexico's modernisation.