我们有必要在出发前制定一份计划的翻译：We need to before you set out to develop a plan 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 need to develop a plan prior to departure

We need to before you set out to develop a plan

We have the necessity before departure to formulate a plan in

We need to develop a plan prior to departure

We need to before you set out to develop a plan