on or before

基本解釋

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個藥物是與藥業(yè)工業(yè)在PDUFA下同意目標審評時間時或前被批準的，包括3個癌癥藥物FDA在短于6個月內(nèi)批準。
blog.sina.com.cn
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(shù)字，一些關(guān)于類型的大小,在我們現(xiàn)在進行試驗之前,你們對這其中的語法或概念有什么問題嗎？
哈佛公開課 - 計算機科學課程節(jié)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(fā)現(xiàn)每次我們周四,要冥想時，我總是匆匆趕過去，或者是到達之前發(fā)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(jié)選

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