底版的英文怎么说

底版的英文：
master

a master of disguise
伪装的能手.

This is the work of a master hand.
这是一位名家的作品。

Sir, you are truly a master of disguise.
长官，你真是伪装大师。

MC (master of ceremonies)
司仪|节目主持人

Russian is a difficult language to master.
俄语是门难以精通的语言。