我们对36个同学进行了问卷调查和走访调查的翻译：Our questionnaire and 36 students visit survey 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

We have 36 students conducted a survey and investigation visits

Our questionnaire and 36 students visit survey

We have carried on the questionnaire survey to 36 schoolmates and visit the investigation

We have the 36 students conducted a questionnaire survey and interviews and investigations

Our questionnaire and 36 students visit survey