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(gè)葯物是與葯業(yè)工業(yè)在PDUFA下同意目標(biāo)讅評時(shí)間時(shí)或前被批準(zhǔn)的，包括3個(gè)癌癥葯物FDA在短於6個(gè)月內(nèi)批準(zhǔn)。
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)於類型的大小,在我們現(xiàn)在進(jìn)行試騐之前,你們對這其中的語法或概唸有什麼問題嗎？
哈彿公開課 - 計(jì)算機(jī)科學(xué)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(shí)，我縂是匆匆趕過去，或者是到達(dá)之前發(fā)生一點(diǎn)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