He managed to acquire a thin veneer of knowledge to mask his real ignorance.他设法装出有点知识的外表，用来掩饰自己的无知。She remained in blissful ignorance of these events.她有幸一直不知道这些事情.What shocked me was the discourteousness and ignorance of...
Colonel is the military rank between lieutenant - colonel and brigadier.上校是陆军中校之上、准将之下的军衔.The brigadier was cashiered for his big mistake.旅长因犯重大错误而被革职.The Brigadier requests your presence.旅长请你去一趟....