1. All is well here. We will get back to you with more information about this requirement shortly. 统统都好，根据您的哀求我们会很快反馈给您更多的信息。
用于客户发哀求过来，并且向你问好的时候，第一韶光回答用语。
①All is well 对应How are you的回答。统统都好。
②get back to sb. 回答某人
③shortly=soon 不久，急速
2. We will keep you posted about the status. 我们会关照你最新进展。
keep sb. posted about sth. 关照某人最新
3. This is our price list, but it serves as a guide line only.
这是我们的价目表，但只供参考。
① serve as 起...浸染，充当。不用被动语态。
② guide line only=for your reference 仅供参考
4. Unfortunately, our stock is exhausted.
很抱歉，我们的库存已告罄。
① Unfortunately代替sorry 位于句首，表示遗憾，抱歉
② stock is exhausted代替be out ofstock表示已无库存
③ 关于stock的外贸短语扩展，be in stock有货，be over stock滞销
同样的表达有keep you informed about the updated progress
5. As soon as fresh supply of raw material comes in, we will reach you.一旦原材料的新货源到，我们会联系你。
① As soon as 一….就
② fresh supply新货源 例如新鲜供应的樱桃fresh supplyof cherries
③ raw material原材料
④ come in 来到
② reach sb. 与某人联系
6. Please accept my apology for the late reply. 抱歉，回答晚了。
accept one's apology for sth. 为某事报歉
报歉回答的其他几种表达：
①Sorry for the late reply.
②Sorry for the late update.
③Sorry I haven't got back to you sooner.