copybook
adjective [ before noun ] UK approving uk/ˈkɒp.i.bʊk/ us/ˈkɑː.pi.bʊk/
精确的，准确的；典范的
exactly as is expected or following the rules connected with a situation
a copybook musical performance 经典的音乐剧演出
a copybook military exercise 精确的军事演习