Theheart rate rises initially, then plummets.
心率先是加快，然后大幅减速。
During the days when I don't do that, my productivity plummets.
我不这样做的那段日子，我的生产率骤降。
Deep and narrow, the bay plummets more than 8,000 feet (243 meters).
深而窄的海湾，大幅下跌了8,000英尺(约243米)以上。
The electrical conductivity plummets about three orders of magnitude.
电导率突然下降,约3个数量级。
As a result, blood sugar plummets, sometimes even going below the baseline.
结果，血糖浓度迅速掉落，有时甚至落于基线之下。
Of course, I can't help you if your performance plummets after the class drop date.
当然，如果在退选时间过后，你的成绩急剧下滑，我就无能为力。
In women, ovulation ends and hormone production plummets during a relatively short period of time.
妇女更年期时，排卵停止且短期内激素分泌量短期内骤减。
An azure blur, a kingfisher plummets toward the water, reaching speeds of more than 25 miles an hour.
就像蓝色的幻影，翠鸟垂直地冲进水里。它的速度可以超过25英里每小时。
As newspaper revenue and circulation plummets, the commercial press grasps for creative new ways to turn a buck.
由于报纸收入和发行量的下跌，商业媒体想依靠制造新办法来赚钱。
Database performance plummets once index tables don't fit in memory anymore, so scale up memory as far as possible to hold tables.
一旦索引表再也无法装入内存，数据库的性能就会直线下降，所以应该尽量升级内存，以便存放那些表。
And projects like Ibream are also looking at the possibility of cloning rhinos, as a weapon of last resort if this species plummets further.
类似Ibream这样的项目同时也在寻求克隆犀牛的可能性，如果这一物种进一步锐减，克隆将成为最后的杀手锏。
When products make users feel stupid or uncomfortable, their self-esteem drops and their effectiveness plummets, regardless of their other goals.
如果产品让使用者感到自己很笨或者不舒服，则其自尊心就会受挫，工作效率也会一落千丈，即使有其他目标也无济于事。
Plastic bag use plummets in supermarkets since 2006Use of carrier bags down 43% in four years, says Waste &Resources Action Programme, but recent figures show fresh rise
Waste &ResourceActionProgramme (WRAP废物及资源行动计划)组织称塑料袋使用在过去的4年中下降43%，但是最近的数据表明出现增长回头趋势。
The collision will throw a massive cloud of dust and debris up into space before, just a few minutes later, another, smaller, spacecraft follows suit and plummets to its doom.
这次碰撞将掀起大团尘埃和碎片，而在几分钟后，另一个较小的飞船也将步其后尘，撞向月球。
If you're like many people, shortly after lunch your head begins buzzing, your concentration plummets, your eyes droop and the top of your desk begins to look as cozy as a feather mattress.
如果你像许多人同样，午饭后不久你的脑袋就最先嗡嗡叫，你的注意力直线下降，你的眼睛低垂，你的办公桌面开始看起来和一床羽绒床垫一样舒适。
If you're like many people, shortly after lunch your head begins buzzing, your concentration plummets, your eyes droop and the top of your desk begins to look as cozy as a feather mattress.
如果你像许多人一样，午饭后不久你的脑袋就开始嗡嗡叫，你的注意力直线下降，你的眼睛低垂，你的办公桌面开始看起来和一床羽绒床垫一样舒适。
Eery winter, when the temperature plummets to new lows and everyone begins to layer up, the classic joke about pulling out Long Johns from the cedar closet inevitably starts to make the rounds.
每个冬天，当气温骤降到新低，每个人都开始把自己层层裹紧，而且从杉木衣柜里不可避免地拽出秋裤并开始套着它四处走动的时候，经典笑话应运而生。
What is known is that the American economy has slowed dramatically, and that the U. S. housing and credit markets are in turmoil while the dollar plummets and inflationary pressures are on the rise.
但是已经知道，美国的经济增长速度已经大大下降，美国住房和信贷市场出现动荡，美元贬值，通货膨胀的压力在上升。
What is known is that the American economy has slowed dramatically, and that the U. S. housing and credit markets are in turmoil while the dollar plummets and inflationary pressures are on the rise.
但是已经知道，美国的经济增长速度已经大大下降，美国住房和信贷市场出现动荡，美元贬值，通货膨胀的压力在上升。
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