It should not be allowed to touch the ground or floor, nor to brush against objects.

不应该允许它接触地面或地板，以及与物体摩擦。

youdao

Reach out and touch the ground or the floor, what does it feel like?

伸出手触摸那里的地面或地板，感觉如何？

youdao

A fall is defined as an event which results in a person coming to rest inadvertently on the ground or floor or other lower level.

跌倒的定义为使人不慎跌倒在地面或地板或其他地面较低的地方的事故。

youdao

The center of the museum is open, so people can look up toward the roof or down toward the ground floor.

VOA: special.2009.04.06

I know some of you come from Europe and other parts of the world where the ground floor is rez-de-chauss?e or some silly thing like this 1 and you push a button on the elevator to one and you go up to the first floor.

我知道你们中间有些人来自欧洲,或者世界其他地方，你们那里的一楼,和地面齐平，或者像这样可笑的事情,比如你要按下电梯的按钮,然后才能上到真正的1楼。

麻省理工公开课 - 固态化学导论课程节选

Upon landing, a waiting bus takes them to a luxury hotel, where porters pile their bags into a ground floor meeting room or take them right to the players' rooms upon request.

FORBES: Magazine Article

In Nieu Besthesda, stay in Bethesda Tower, a castellated, fairytale tower with a ground-floor cafe, or the Water Tower, a simpler option in a converted water tower.

BBC: South Africa��s arty eastern Karoo

For small investors it will be either a great level-the-playing-field opportunity to get in on the ground floor of promising startups or a federally sanctioned invitation to fraud on a scale not seen since the boiler-room days.

FORBES: What You Need To Know To Profit From Crowdfunding