What is the level of difficulty of Train Simulator

What is the level of difficulty of Train Simulator 翻译一句话：“what is the localization level of management?” what is the percentage of service level mentioned What level of qualification is expected? 1．what is the way you thought of ( )them out of difficulty? What's reason for the difficulty of maintaining the cooperat what is my train of thought是什么意思 英语翻译11.What is the highest level of education that you have Do you know what cause the level of the seas The love is known in the time of difficulty The difficulty of English study this level of management is the link between the operations