With reference to your letter of yesterday, we cannot accept the offer.
关于你昨天的来信，我们无法接受提议。
With reference to your letter of the 6th inst., we are glad to inform you that there has been a great demand for the articles.
关于本月6日的来信，我高兴地告知，该商品的需求量甚大。
With reference to your letter of the 6th inst, we are glad to inform you that there has been a great demand for the articles.
关于本月6日的来信，我愉快地告知，该商品的需求量甚年夜。
应用推荐