This special offer is valid until the end of the month.
这个特价优惠月底前有效。
The validity period is indispensable to a firm offer, that remains valid until a stipulated time or until it is accepted or rejected.
有效期对于确盘是必不可少的，在规定的时间之前或在被对方接受或拒绝之前确盘一直是有效的。
This offer is valid from now until further notice.
此优惠有效期由即日起，直至另行通知。
应用推荐