Theater is by its very nature ephemeral.

戏剧界的本质就是短暂的。

" Labeling sound is harder than labeling images because sound is invisible and ephemeral."

“标记声音比标注图像更难，因为声音是无形而且短暂的。”

" We do not record them, " said the geographer, " because they are ephemeral."

“我们不记录它们，”地理学家说，“因为它们是短暂的。”

Indeed, digital technologies may prove to be more ephemeral than their predecessors.

事实上，数字技术的存在时间可能比之前的技术更加短暂。

40 artists spent weeks to create and carve this strange and ephemeral place.

四十位艺术家花了几个星期的时间来创造和雕刻这个奇特而又只能短暂存在的地方。

They produce ephemeral rain roots that quickly take up the available water.

这些侧根长出能快速吸收水分的短生雨根。

Once weaned from the ephemeral craving for TV, most people will find they enjoy the time they spend reading.

而一旦戒除了对电视这种暂时的渴望，大多数人都会发现他们能享受阅读的时光。

Flowers are considered in ephemeral gift meaning you can't actually use it or consume it.

鲜花被认为是短暂性的礼物，这意味着你不能真正使用或消费它。

But they, like just about everyone else, were pretty sure that they themselves weren't just ephemeral brains.

但是这些宇宙学家们，就和大多数人一样，非常确信他们本人并不只是转瞬即逝的大脑。

So it's kind of this ephemeral thing.

所以这是一种短暂的东西。