我们无法确定准确开船时间的翻译：We are unable to determine the exact departure time 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 can not determine the exact time of sailing

We are unable to determine the exact departure time

We are unable to determine the accurate setting sail time

We are unable to determine the precise time Neapolis

We are unable to determine the exact departure time