without notice

中英例句：

1. He left without notice.
   他不辭而別。
2. The information contained in this document is subject to change without notice.
   本文檔所包含的信息可隨時更改，不另行通知。
3. The price is subject to change without notice.
   價格隨時更改，不另行通知。
4. As what we have signed is a fix- price contract with escalation, the price can be changed without notice.
   由於我們所簽的是一份標價伸縮契約，價格可以不經事先通知而變動。