有效日期: 1.date of validity2.expiry date3.expiration date> 有效期: period of validityRelative explainations: Examples:1. 投标人有权拒绝延长投标有效期限并不会因此而失掉其投标保证金。 Bidder shall have the right to refuse to grant such an extension of validity of bid without forfeit their bid bond.2. 下列特殊报价的有效期仅限。。。周，当贵公司发出订单时请注意。 The following special offer is valid for... weeks only, kindly keep this in mind when placing your order.3. 一般来说不应要求延长投标有效期限。 Extension of validity of bid shall normally not be requested.4. 他申请延长签证有效期。 He asked for an extension of his visa.
Rainbow蓓
