A valid Titan Quest installation was not found in the selected directory是什么意思

A valid Titan Quest installation was not found in the selected directory是什么意思 安装泰坦之旅到installshield显示unable to find a valid Titan Quest installation. 安装后玩不了 显示 Please insert the original [Titan Quest Immortal Throne] disc Please enter a valid Being creative doesn't necessarily titan being a genius.怎么翻译,这个titan是个什么用法啊? 能不能帮我翻下： Being creative doesn't necessarily titan being a genius. 这个titan是个什么用法? valid valid Enter a valid email address Please enter a valid zipcode Please select a valid date. please enter a valid first please enter a valid license please provide a valid emall is not a valid date titan的中文意思 Please enter a valid Credit Card Number A valid email address is required.