Wefeelthatyourcounter-offerisnotproperbecauseofthepriceforsuchamaterialisontheraiseatpresent.

人类活动已经对生态系统造成严重破坏。

We hoped that there will be no repetition of this kind of trouble in the future .

Payment of the purchase is to be effected by an irrevocable letter of credit in our favour, payable by draft at sight in pounds sterling in London.

If you are willing to buy the whole lot once and for all ,we can grant you a discount of 8% on the price.