So a long time before quantum mechanics was developed, people made measurements of the heat capacities of materials.

那么在量子力学建立起来，之前的很长一段时间，人们测量，物质的热容。

youdao

The symbolism may come from the fact that the olive tree takes a long time to produce fruit, so olives could only be cultivated successfully in long periods of peace.

它的象征意义可能来自于橄榄树需要很长时间才能结出果实，所以橄榄只能在长久的和平时期才能被成功种植。

youdao

This often proves difficult and can take a long time so I will ring a bell so that everyone knows it's time to eat! Hopefully this will speed things up a bit.

事实证明这很困难并可能需要很长时间，所以我会提醒每个人，是时候吃东西了！希望能加快速度。

youdao

"It's a big deal. How big a deal you have to measure piece by piece but clearly it is the first major change in our health care system since nineteen sixty-five so that's a long time coming."

VOA: special.2010.03.27

So it took a long time for the twenty books that we have to get settled on. And we'll talk about how that actually happened,also,still.

所以很长一段时间之后那27本书,才最终被确定下来，我们会谈及,那是如何实现的。

耶鲁公开课 - 新约课程节选

so for about six, oh, no, it was nine hours a day, it's a long time ago.

每天要上六个，噢，不是，是九个小时的课，这都是很久以前的事情了。

纽约的人们 - SpeakingMax英语口语达人

Dr. Eric Weiner of Dana-Farber Cancer Institute in Boston says it's really unusual for a drug to be so effective such a long time after diagnosis.

NPR: Study: Drug Can Curb Breast Cancer Recurrence

The Baltic Sea is semi-enclosed, so it takes a long time to flush out toxins.

BBC: Sweden wants explanation on Baltic nuclear 'dumping'

So I learned a long time ago that the best way to be is really curious, and people like responding to someone who they know is.

CNN: Larry King on pop culture, star power and suspenders