This means that weather can change quickly and unpredictably.

意思是天气变换地很快而且无法预测。

Covid-19, if it comes, could spread quickly and unpredictably, which would test a cash-strapped health-care system.

如果Covid-19真的出现了，它可能会迅速而不可预测地蔓延开来，这将考验一个资金紧张的医疗体系。

Deputy director of Cal Fire, Michael Mohler, says California's wildfires are burning faster, longer and more unpredictably.

加利福尼亚州消防局的副主任迈克·莫勒说，加州的野火燃烧得更快，时间更长，更难以预测。

Most of us eat meals erratically and unpredictably, contributing to stress, anxiety, and a negative state of mind.

多数人饮食不规律，这能导致压力、焦虑和消极的心态。

But in every new country it still starts with experiments, because each place is slightly and unpredictably different.

但是在每个新的国家，它仍然是从实验开始的，因为每个地方都略有不同，而且不可预测。

And he added that it could defeat antimissile systems by moving unpredictably.

他补充说，它可以通过不可预测的移动来击败反导弹系统。

Then the level of the oysterbank would lower unpredictably.

然后牡蛎银行的水位就会出人意料地下降。

Acting like a goofy child one minute, then becoming unpredictably angry or agitated the next.

前一分钟表现得像个傻孩子，下一分钟就变得莫名其妙地生气或激动。

Before long the wind began shifting unpredictably and white ash flakes fell out of the air around

不久，风向开始变幻莫测，白色的灰片从周围的空气中飘落下来。

These volcanic vents continue to ravage the community of Leilani Estates, opening unpredictably along the lower east rift zone of the Kilauea Volcano.

这些火山喷口继续破坏着Leilani庄园的社区，沿着基拉韦厄火山的下东部裂谷区，不可预测地喷发。

I distinguished the unpredictably contoured springings of a vault, supported by natural pillars firmly based on a granite foundation, like the weighty columns of Tuscan architecture.

我分辨出那些由天然石柱支架起来的、穹窿很宽大的形成轮廓的起拱石，这些石柱的宽大底座安在花岗岩的石基上，像托斯甘式建筑的笨重石柱那样。

On top of this, imperfect manufacturing means that some parts of a quantum chip suffer noticeably more errors than others-a pattern which varies unpredictably between individual chips.

此外，制造工序难免存在缺陷，这就意味着量子芯片的某些地方出现的差错相比之下可能会格外严重——不同芯片之间出错的模式也难以预测。

" To fluctuate" means to vary – to increase and then decrease, but not in a constant or steady way, to go up and down unpredictably.

“波动” 意味着变化——先增加然后减少，但不是以恒定或稳定的方式， 不可预测地上下波动。

The seafloor rose noticeably, and when I lifted my arms, sometimes they would pass above the surface of the sea. Then the level of the oysterbank would lower unpredictably.

水底地面显然上升，我的胳膊有时候举起来，伸出在水面上了。其次，岩脉的水平面也任意地低下来。

Zetta's fear for Rayne hadn't even subsided yet, and now here she was, getting a second dose, seeing her little cousin exposed to this unpredictably destructive creature.

Zetta 对 Rayne 的恐惧甚至还没有消退，现在她在这里， 正在接受第二剂治疗，眼睁睁地看着她的小表弟暴露在这个不可预测的破坏性生物面前。

The drag it exerts on any orbiting spacecraft can thus unpredictably increase or decrease, making it hard for NASA or other agencies to predict precisely where the spacecraft will land.

它对任何轨道航天器施加的阻力就会因此增大或缩小，但具体并不能预测，这就使得NASA或其他机构难以准确地预测航天器的降落位置。

The Nautilus slowed down, hovering above the muddled masses on the seafloor, sometimes grazing them as if wanting to come to rest, sometimes rising unpredictably to the surface of the waves.

诺第留斯号行驶缓慢，在地面认不清的一堆一堆东西上面往来盘旋，有时它接触到这些乱堆，好像它想停留在上面似的；有时又很任意地浮出海水面上来。