Price quotations expire sixty (60) days from the date of issuance unless otherwise specified in the quotation. Prices are net and are not subject to trade or other discounts and do not include local, state, or Federal sales excise taxes or cost of special packaging or insurance. Such taxes and costs, when applicable, will appear as separate charges on our invoices. Prices quoted do not include shipping charges unless so stated in quotation.
价格报价单从签发日期起六十(60)天到期，除非在报价单中另有指定。 价格是净的并且不是受贸易或其他折扣支配，并且不包括地区，国家，或者联邦销售特别包装或保险的特许权税或费用。当适用时，税和费用在我们的发货票上可作为单独的费用出现。 标出的价格在报价单不包括运费，除非如此陈述。
请帮我修改一下，谢谢！
