State of the art (sometimes cutting edge) : the level of development (as of a device, procedure, process, technique, or science) reached at any particular time usually as a result of modern methods 直接翻译成最先进和最尖端的。 Popularity: Bottom 40% of words (merriam webster)
总结一下, state = 社稷,国家 nation = 国族,家国 country = 江山,国度 片总 42 人赞同了该回答 如果不是考试而是平时上网看到的地方, nation 一般是国籍, state 是州,记得国家不要直接用country,而用country and region可以避免麻烦哦