be valid

例句 (10)

• Your passport must be valid for at least six months.你的护照必须至少有效六个月。
• The coupon is valid until the end of the year.优惠券在年底前是有效的。
• This ticket will not be valid if you tear it.如果你撕毁这张票，它将不再有效。
• His excuse for being late was hardly valid.他迟到的借口几乎不是合理的。
• That point is entirely valid and deserves discussion.那个观点完全是站得住脚的，值得讨论。
• The warranty is no longer valid once the seal is broken.一旦封条破损，保修就不再有效了。
• We need to check if the signature is valid.我们需要检查签名是否有效。
• Her criticism of the project was completely valid.她对项目的批评完全是有道理的。
• The offer is only valid for new customers.该优惠仅对新客户有效。
• The results of the study may not be valid due to errors.由于错误，研究结果可能不是有效的。