keep up to

基本解釋

In order to develop secure web applications you have to keep up to date on all layers and know your enemies.
為了開發(fā)安全的Web應(yīng)用你必須不斷更新的所有層次和了解你的敵人。
One of the hardest tasks for some foreigners is to keep up to date with what is still open, what is under new management and what is the latest place.
對外國人來說，其中一個最艱巨的任務(wù)就是跟進(jìn)有關(guān)這些場所的信息，哪些是新開業(yè)的、哪些是業(yè)務(wù)擴(kuò)大的及哪些是最新的。
www.chinadaily.com.cn
To keep up to date subscribe to security mailing lists, read security blogs and make updating and security checks a habit (check the Additional Resources chapter).
要不斷更新訂閱的安全郵件列表，請閱讀安全博客，并更新和安全檢查的習(xí)慣。

But they expect that final results in October will show it can keep the liquid stable for up to twelve months.
and I like to keep up to date with them because it's important that we learn about it.
我喜歡跟上潮流，因為學(xué)習(xí)潮流很重要。
推薦古老店鋪 - SpeakingMax英語口語達(dá)人
And you might have kind of been projecting ahead and thinking if we keep up at this pace, pretty much we would only get to carbon by the end of the semester.
你們可能會有這種推測：,如果我們以這個速度繼續(xù)下去的話，這個學(xué)期,也只能講到碳原子。
麻省理工公開課 - 化學(xué)原理課程節(jié)選

Each month, a quarter of a million people keep up to date on local government happenings.
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