The decline in American Indian languages has historical roots.
美国印第安语言的衰落有其历史根源。
That's one explanation for the decline in traditional craftsmanship.
这是传统工艺衰落的一种解释。
This is the decline in the growth in yields of some of the world's major crops.
这是世界上一些主要农作物产量增长速度的下降。
Researchers have found that the decline in waters near the poles is most pronounced.
研究人员发现，在两极附近的水域跌幅最为显著。
Can anyone be sure if the decline is really caused by the hunting or by climate change?
有人能确定这种下降到底是由捕猎还是气候变化引起的吗?
"Many factors contributed to the decline", said Patrick McIntyre, an ecologist who was the lead author of the study.
该研究的领头作者、生态学家帕特里克·麦克伦泰尔表示：“许多因素导致了这种下降。”
Of the two plausible explanations for the decline—increased predation by killer whales or disease—disease is the more likely.
对于鲸鱼数量的下降，有两种可能的解释——虎鲸捕食或疾病的增加——疾病的可能性更大。
The aim is to reverse the decline in the number of tree species or at least to preserve the "genetic material" of all of them.
其目的是扭转树种数量下降的趋势，或至少保存所有树种的“遗传物质”。
The decline started in the 1950s, when manufacturing generated a sturdy 28% of the national income, or gross domestic product, and employed one-third of the workforce.
衰退始于20世纪50年代，当时制造业创造了28%的国民收入（国内生产总值），并且雇佣了三分之一的劳动力。
Primary care physicians who refuse to compromise quality are either driven out of business or to cash-only practices, further contributing to the decline of primary care.
拒绝在质量上妥协的初级保健医生要么被赶出这个行业，要么只能接受现金，这进一步加剧了初级保健的衰落。
The more important goal is using interactive learning to discover the cause of the decline and compare it to issues we face today—natural disasters, environmental problems, and war.
更重要的目标是利用互动式学习来发现减少的原因，并将其与我们今天面临的问题——自然灾害、环境问题和战争——进行比较。
These days, as studies in the U.S.show bullying on the rise and parental supervision on the decline, researchers who study bullying say that calling moms and dads is more futile than ever.
如今，随着美国的研究显示欺凌行为在上升，而父母的监督在下降，研究欺凌行为的研究人员说，给父母打电话比以往任何时候都更没用。
Thankfully the smoking of cigarettes is on the decline.
感谢的是吸烟正在减少。
The decline in marriage has been offset by a rise in cohabitation.
同居人数的增加跟结婚人数的减少相抵消。
An increase in cars has resulted in the decline of public transport.
汽车的增加导致了公共交通的减少。
An increase in cars has resulted in the decline of public transport.
汽车的增加导致了公共交通的减少。
应用推荐