When a stream of these negatively charged electrons comes within 100 meters of the ground it is met by a stream of positively charged particles that comes up from the ground.

当这些负电荷距离地面不到100米时，会遇到一股来自地面的正电荷粒子流。

youdao

Czeslaw threw the cigarette on the grass and ground it to pieces.

切斯·沃夫将那根烟丢到草里，碾碎了。

youdao

If a building is well constructed and built on solid ground, it will resist an earthquake.

如果一座建筑构建良好，并且地基坚实，它就能抵抗地震。

youdao

Also,the root can stay in the ground for as long as three years, so it can be harvested as needed.

VOA: special.2010.06.08

But it is interesting. Let's just, for an order of magnitude say what happens for ground state electron in atomic hydrogen?

但行星模型其实挺有趣的，按照重要的先后顺序，我们来猜想一下,氢原子中的基态电子会发生些什么？

麻省理工公开课 - 固态化学导论课程节选

But it had rows of seats like that, usually made over a hill or dug into the ground in some way.

但是观众席的结构很相似，通常建在山坡上或挖入地下。

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