The coupon is only valid until the end of the month.
这张优惠券只在本月底之前有效。
Your argument is not valid because it lacks evidence.
你的论点不成立，因为缺乏证据。
Please ensure your password is valid before logging in.
请确保您的密码在登录前有效。
The contract is valid for two years from the signing date.
合同自签署之日起有效期为两年。
Her driver's license is not valid in this country.
她的驾驶执照在这个国家无效。
The ticket will remain valid for one week after purchase.
购票后票据将有效期为一周。
Is this train ticket still valid for today's journey?
这张火车票今天的行程还有效吗？
They need to provide a valid reason for their absence.
他们需要提供合理的缺席理由。
The research findings are valid and can be trusted.
研究结果可靠且可以信赖。
His visa is no longer valid and must be renewed.
他的签证已不再有效，必须续签。
valid until
有效期至；到期日为
valid data
有效数据；有效资料
valid period
有效期；有效期限；有效期内
valid passport
有效护照
valid from
有效期从…；有效期由…；从…起有效
副词: validly;
