Past master
01
老手, 经验丰富的专家
an expert in a particular field with a great deal of experience
例子
As a past master of diplomacy, she skillfully negotiated the international treaty.
作为外交领域的老手,她巧妙地谈判了国际条约。
02
前大师, 荣誉大师
someone who was formerly a master



























