1.to our regret 我们感到遗憾

To our regret,we are unable to increase our supply for the moment as our manufacturers have so many back orders to catch up with.

To our regret,your product quality is not up to our expected standard.

2.ship （v.） 装运

The goods are to be shipped from Vancouver,Canada.We’re in the shipping business.

The cargo must be shipped by China Forwarding Corporation with whom we have a five-year contract.

3.without engagement 不承担义务

Unless otherwise stated,our quotations in this offer sheet are given without engagement.

4.in order to 为了

In order to maintain our friendly relations,we’ll allow you a 2% commission this time.

5.to that extent 达到那样的程度

Your request for a 5% commission is unacceptable to us.We’ve never increased the commission to that extent.

I am not authorized to reduce the price to that extent.

6.is apt to continue 倾向于继续……

Since there is a serious shortage of this commodity at present,the market is apt to keep rising in the weeks to come.

The trend for the bubbled commodity market is apt to continue in the next few years.