At the time, the plant was used as packing material that protected other orchid plants arriving from Brazil.

VOA: special.2010.04.06

So first I'm gonna say something about identity across time or indeed initially identity across space with some familiar humdrum material objects.

所以我首先要,用一些大家熟悉的一般实物,谈谈贯穿时间,和贯穿空间中的人格。

耶鲁公开课 - 死亡课程节选

Spirit is merely a kind of bodily form of energy, and God at the beginning of time infused this energy into the entirety of the material world at the Creation.

灵魂不过是能量的一种物质形式，上帝在时间之始创世纪之际将这能量,注入到了整个物质世界之中。

耶鲁公开课 - 弥尔顿课程节选

Cut to the chase means to stop spending so much time on details or unimportant material.

VOA: special.2010.07.25

Whenever there is a force, it can be traced back to a tangible material cause, which is all the time a force of contact, with the exception of gravity.

如果有作用力,那它一定能找到一个明确的实体施力物体,也就是无论何时物体受的都是接触力,引力除外

耶鲁公开课 - 基础物理课程节选

As time passed, the area filled with material left by rivers.

VOA: special.2009.04.15

We have 266 ping-pong balls, and we need someone, hopefully you, to be some radioactive material that are going to be emitting these ping-pong balls. And when the time comes, in just a minute, I'll ask the TAs to come down and hand these out very quickly to you, so we can do this experiment.

你们有些人那天，看到我在办公室数乒乓球，我们需要几个人,希望是你,来作为放射材料，放射这些乒乓球,等会我会让助教,把这些球发给你们。

麻省理工公开课 - 化学原理课程节选

"He was young and I had a very good time drawing his picture because I used a lot of reference material that were paintings made of him at different times in his life.

VOA: special.2009.02.27

So,yes,there is a threat particularly of the use of radioactive material, although we have no specific evidence indicating any capability at this time."

VOA: standard.2009.05.01