left over

基本解釋

In anticipation of the gathering, Chile sent its entire stock of highly enriched uranium — left over from a research reactor — to the United States.
預(yù)期到這次聚會(huì)，智利把其從一個(gè)用于研究的反應(yīng)堆中留下的所有高濃度鈾都送到了美國。
These beliefs further suggest that the desire for correctness, the very idea of better or worse in speech is what is left over from noble and humble times.
這些主張還進(jìn)一步暗示：尋求正確語言表達(dá)的愿望，即話語有好壞之分這個(gè)觀念本身是從有貴族貧民之分的那個(gè)時(shí)代遺留下來的。
edu.beelink.com.cn
In the case of Los Angeles Dr Stark estimates that, by dawn, the amount of pollutants left over to make smog is about 5% higher than it otherwise would have been.
以洛杉磯為例，斯塔克博士估計(jì)，到了黎明，城市上空殘留下來構(gòu)成煙霧的污染物數(shù)量比沒有燈光照射的情況下要高出5％左右。

Upon his death, Mr.Lehman left the museum over three thousand works of art.
And if we put that in our bond here, we have 1, 2, 3 bonds, plus we have one lone pair left over.
如果我們把它們放到鍵里，我們有1，2，3個(gè)鍵，還剩下一對(duì)孤對(duì)在這里。
麻省理工公開課 - 化學(xué)原理課程節(jié)選
In this case, it's called the ionization energy, plus whatever kinetic energy we have left over in the electron.
在這種情況下，它就是電離能，剩余部分將轉(zhuǎn)化為,出射電子的動(dòng)能。
麻省理工公開課 - 化學(xué)原理課程節(jié)選

There should be about 30% left over, and I can use that as I please.
FORBES: I've Tracked My Expenses -- Now What?

You can refer to food that has not been eaten after a meal as leftovers.
You use leftover to describe an amount of something that remains after the rest of it has been used or eaten.