martinet

1. N-COUNT If you say that someone is a martinet, you are criticizing them because they are very strict and demand that people obey their rules and orders. 嚴(yán)格遵守紀(jì)律者; 要求服從命令的人[正式]

He's a retired lieutenant colonel and a bit of a martinet. 他是位退役中校，有點(diǎn)一板一眼。