Fears are now being voiced that the planned construction of an oil pipeline across the lake's bottom might revive pollution and cause the fish population to decline again.
现在有人担心，计划修建的穿越湖底的输油管道可能会重新造成污染，导致鱼类数量再次下降。
But around 2012 these measures started to decline.
但在2012年左右，这些指标开始下降。
Although these seeds currently cost more than conventional seeds, their cost is likely to decline.
虽然目前这些种子的成本高于传统种子，但它们的成本很可能会下降。
There has been a budding economic recovery since the 2008 global crash, but in key indicators in areas such as health and education, major economies have continued to decline.
自2008年全球经济崩溃以来，经济复苏初现苗头，但在卫生和教育等领域的关键指标上，主要经济体的状况仍持续下滑。
Venetian shipping had started to decline from about 1530—before the entry into the Mediterranean of large volumes of Dutch and British shipping—and was clearly outclassed by the end of the century.
威尼斯的航运业从1530年左右荷兰和英国船只大量进入地中海之前开始衰落，到16世纪末已经明显落后了。
Around 2012 these measures started to decline.
2012年左右，这些措施开始减少。
However, as years passed, Mrs. Kuroki's health began to decline.
然而，随着岁月的流逝，黑木太太的健康状况开始恶化。
Team morale starts to decline.
团队士气开始下降。
Orwell's health continued to decline.
奥威尔的健康日渐衰败。
Across the region, fertility rates are starting to decline.
在整个非洲地区，生育率开始下降。
Revenue is projected to decline another 39.7 percent by 2016.
预计到2016年，行业收益还将下降39.7%。
Revenue is projected to decline another 14.6 percent by 2016.
预计到2016年，行业收益还将下降14.6%。
Revenue is projected to decline another 39.1 percent by 2016.
预计到2016年，行业收益还将下降39.1%。
Sarah cannot attend this meeting and decides to decline it.
Sarah无法出席此会议，决定拒绝邀请。
The population, currently about 127m, has already started to decline.
其现有人口为1.27亿，且已开始减少。
As the brain gets older, the prefrontal cortex begins to decline quickly.
由于大脑变老了，其前额皮层(prefrontal cortex)开始迅速地衰退。
Amazingly, the study of modern languages in the UK continues to decline.
令人惊奇的是，英国的现代语言学习者人数却在不断减少。
US magazine circulation continued to decline in the first half of 2010.
今年上半年，美国杂志发行量延续颓势。
We start with around 100 billion, but in our 20s this number starts to decline.
我们最初有约1千亿个，但是在我们20几岁，这个数字开始下降。
Remind your partner that it's better to decline a task than to break a promise.
提醒你的伴儿，有时候推掉一件事比爽约要好。
When a component of demand declines, supply will ultimately have to decline as well.
当需求的组成部分下降时，供给最终也会相应下降。
Non-OPEC supplies, which have grown in recent years, may start to decline in 2012.
近年来不断增长的非欧佩克原油供给则可能从2012年开始减少。
With oil revenues falling and populations growing, per capita income began to decline.
随着石油收益的下降，人口的增加，个人平均所得开始下降。
The American housing market began to decline half a decade ago and hasn't stopped yet.
5年前，美国的楼市就开始衰退了，目前还未停止衰退。
It has now started to decline slowly, andis likely to continue to fall at a slow rate.
其现在已经开始下降，并且有可能继续慢速下降。
Colombia remains much safer than it was a decade ago, and the murder rate continues to decline.
哥伦比亚比起十年前来是要安全得多了，谋杀率也在持续下降。
Colombia remains much safer than it was a decade ago, and the murder rate continues to decline.
哥伦比亚比起十年前来是要安全得多了，谋杀率也在持续下降。
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