英语翻译As we have to call to reserve queue for submission date

英语翻译
As we have to call to reserve queue for submission date with Embassy and it's always full i.e.looking for apoointment date since 24Apr but first available may be 14May then strongly recommend to prepare to submit of visa at least 3-4 weeks before travel date.
这真就是一句话,是关于签证的.谁能给我翻译一下?
不要用谷歌和金山的直接翻译,因为错的很离奇