范文：预先告之对方方便联系的时间

I am at present in Hamburg visiting the harbour with a view to making known our new type of container for use in Europe.

I shall be in Antwerp on Wednesday, 4th June, and should like to call on you at 2.00 p.m. on that day.

If I do not hear from you to the contrary, I shall assume that it will be convenient for me to call at that time.

Yours faithfully

中文参考：

尊敬的先生/小姐：

我现正在汉堡参观港口，以让欧洲了解并使用我们的新型集装箱。

星期三即六月四日，我将到安特卫普，我会于当天下午2：00打电话给你。

对此约定如不来信，我将认为于这个时间打电话是方便的。

您诚挚的