英语翻译老板要给老外EMAIL,大致内容是：“我们已经开出信用证4天了,但你方还没有照我们之前的约定提出正式的装运计划,

The L/C was issued 4 days ago,but we still have not received your formal delivery schedule which you should provide us according to what we planned before,that would be what makes us feel so sorry.
We are looking forward to being in long-term cooperation and win-win benefits which are ensured by your strong financial strength,and your efficient doings in keeping the promises.
译文精彩,没有再比我这个好的了
“我们很失望”可以用“feel so sorry”来表达,表示很遗憾,不建议用其他程度很深的词.
另外是,信用证开出要好多天才能收到,估计4天那边还没收到,时间长的要一个多星期