问题：

[单选]

⑥We are considering providing each of our sales representatives with an eight-digit electronic calculator. Last week I saw a demonstration of your Model GH Wizard at the Boise Business Show, and I think it would fill our needs very nicely. I understand that the Wizard retails for＄33.95. Is there a trade discount for companies that buy in fairly large quantities? ⑦Our initial order would be for about 80 units and reorders in perhaps lots of 20.

文中⑦段画线部分翻译正确的是（）。

A . 我们最先的订货是80台，然后再订20台之多。
B . 我们预先订货80台，后续还会有几批每次20台的订货。
C . 我们预先订货80台，然后还有很多新的20台。