这句话怎么说

3楼非常不错哈

意思表达清楚就可以。。。不过3楼说的有点道理，多少算大定单呢？？

If the quantity that you need is large enough, we can ask our material supplier for a more forable price.

你本身这句中文的就有点不恰当。。
改成 如果你们下单数量达10000 ， 要列出一个具体的数字（10000只是例子. 当然 我不知道你们多少才算大数量，客人或许也不了解究竟是多少才是BIG ORDER.）

SO...    We will try to get more discount from material supplier if the order qty meets 10,000 pcs

we can apply  for more discount to our material supplier if your quantity is large

If your quantitiy is large, we can give you more forable terms