英语翻译天气预报很重要,依据它我们才能决定什么时候起航翻译：Weatherforecast is so important that depend on which can we decide when to set sail.应该是有错误,但是不知道怎么改,

the weather forecast is so important that we cann't set sail without it.
或者the weather forecast is so important that we can set sail according to it.

The weather forecast is very important, so that we can decide when to start

Weatherforecast is so important that only depending on it can we decide when to set sail.

Weather is very important, according to which we can decide when to set sail .
so that 用的不恰当
The weather forecast is very important, that we can decide when to set sail

Weather forecast is so important that based on it,we can decide when to set sail.或者Weather forecast is important for that/in that we have to depend on it in order to decide when to set sail.或者Weat...

问题很大呢. Weatherforecast is very important.And only depending on it, can we decide when to set sail .这样就可以了吧.应该(- -..