There is currently much debate in emergency-management circles over the relative merits of sirens, text messages and other high-tech gadgetry.
怎么翻译? relative merits 是不是优缺点的意思??
http://www.hjbbs.com/thread-30-446724.htm倒数第三段
最佳答案
翻译要从原文入手,单词不懂就查英文辞典。
relative, comparative (estimated by comparison; not absolute or complete) "a relative stranger"