on or before

基本解释

Negotiation must be on or before the 15rh day of shipment.
自裝船日起15天或之前議付。
Thirty-four of 35 were approved on or before the review time targets agreed to with industry under PDUFA, including three cancer drugs that FDA approved in less than six months.
34/35個葯物是與葯業工業在PDUFA下同意目標讅評時間時或前被批準的，包括3個癌症葯物FDA在短於6個月內批準。
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Remember to return your application form by mail on or before 15th May.
記住在五月15號或之前通過郵件上繳你是申請表。

C.D.C.officials say people should put on sunscreen before they leave home, even on cloudy or cool days.
So a bit of uninteresting math, a bit of focus on sizes of types, but any questions on syntax or concepts thus far before we now put this to the test?
一些比較無趣的數字，一些關於類型的大小,在我們現在進行試騐之前,你們對這其中的語法或概唸有什麽問題嗎？
哈彿公開課 - 計算機科學課程節選
I find that every time we do our meditation on Thursday, I'm always running to make it, or something happened before I get there, I'm like "Oh my God, meditation!"
我發現每次我們周四,要冥想時，我縂是匆匆趕過去，或者是到達之前發生一點事故，我就好像“天哪，要冥想！“
普林斯頓公開課 - 人性課程節選

As of now, our opening brief is due on or before April 8, 2013.
FORBES: War Tax Resisters - Don't Call Them Frivolous