Sales have levelled off after a period of rapid growth.
销售经过一段时间的快速增长后呈稳定状态。
A period of unrest followed the president's resignation.
总统辞职之后有一段时期的动荡。
The next few weeks will be a period of readjustment, and will probably not be easy.
接下来的几周是重新适应的时期，很可能不会容易。
The 1990s was a period of disinflation, when companies lost much of their power to raise prices.
20世纪90年代是一段通货紧缩期，当时各公司大大丧失了他们的提价能力。
In fact, I'd like to relive a period I've already lived—the 1960s.
事实上，我想要重温自己曾经历过的一段时间——20世纪60年代。
After training for a period of time, the researchers tested the bees.
经过一段时间的训练后，研究人员对这些蜜蜂进行了测试。
The shape of this orbit isn't consistent; it varies over time, over a period of about a thousand years.
轨道的形状并不是始终如一的；它会随时间变化，变化周期为一百年左右。
Shakespeare's life time was coincident with a period of extraordinary activity and achievement in the drama.
莎士比亚的一生恰好是戏剧界异常活跃、硕果累累的时期。
Regardless of what social media people use, one thing is certain: we are in a period of accelerating change.
不管人们使用什么社交媒体，有一件事是肯定的：我们正处在一个加速变革的时期。
Many seeds require a period of stratification, exposure to low temperatures for some minimum period, before they will germinate.
许多种子在发芽前需要一段时间来分层，并在低温下储存一段时间。
One advantage of pitfall traps is that they can be used to collect over a period of time with minimal maintenance and intervention.
陷阱的一个优点是可以在一段时间内用最少的维护和干预进行收集。
By dropping out after studying for a period of time, the two students have wasted educational resources, which could have been provided for others.
两名学生学习一段时间后辍学，他们浪费了本可以提供给其他人的教育资源。
The bank depreciates PCs over a period of five years.
这家银行把个人计算机分五年折旧。
His writing career extended over a period of 40 years.
他的写作生涯超过了40年。
The lectureship is tenable for a period of three years.
讲师这一职务任期三年。
The patients were observed over a period of several months.
这些病人被观察了数月之久。
The likelihood is that the slump will be followed by a period of buoyancy.
有可能在衰退之后出现一段繁荣时期。
There was a period of excessive warmth which melted some of the polar ice.
有段时期温度过高，融化了极地的部分冰层。
A period of freezing weather destroyed a large part of Brazil's coffee crop.
一段时间的严寒天气摧毁了巴西大部分的咖啡作物。
After a period of time, the blanket breaks and a wet, weak butterfly appears.
过了一段时间，覆盖层破裂，一只湿漉漉、虚弱的蝴蝶便出现了。
You will have a period of time to relax and then set out on your new journey.
你将有一段时间来放松，然后开始新旅程。
It's the one vaccine that you have to get three shots over a period of six months.
这种疫苗需要你在六个月里注射三次。
Tribes would stop fighting for a period of time if they found a tree with mistletoe.
如果他们发现一棵树上有槲寄生，部落会停止一段时间的战斗。
If you're in a period of change or just feeling stuck and in a rut, now may be a good time.
如果你正处于一个变化期，或者只是感到困顿和陷入困境，现在可能是一个好时机。
The chart above shows five activities of penguins over a period of one year, month by month.
上面的图表逐月地显示了一年中企鹅的五种活动。
I see this as a course that's an introduction to the literature of a period, to modern poetry.
我认为这是一门关于某个时期的文学和现代诗歌的入门课程。
Acute insomnia means consistent inability to sleep well for a period of three weeks to six months.
严重失眠意味着连续三周到六个月都睡不好觉。
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