The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years.
在最近的20年到30年的时间里，某些种类的鲨鱼的数量已经下降了90%。 ！
Wang said in the last 20 to 30 years, what it means to be Asian in Southern California has changed.
王说在过去二三十年间，南加州的亚洲人已经不同了。
In the middle to high latitudes rainfall has risen steadily over the last 20-30 years.
中高纬度地区的降雨量在过去的20到30年间稳步上升了。
For the last 20-30 years, we've been out there trying to improve the capability of organizations that depend on software, in simplest terms.
在过去的20 - 30年中，我们试图以最简单的形式提高那些依赖于软件的公司的能力。
"Land costs, labor costs, raw material costs, they've all gone up 20 to 30 percent in the last three years," says Chen Dan, chairman of Guangdong Evergreen.
“土地、劳动力和原材料成本在过去三年里都上涨了20%到30%，”广东恒兴公司董事长陈丹说。
"Land costs, labor costs, raw material costs, they've all gone up 20 to 30 percent in the last three years," says Chen Dan, chairman of Guangdong Evergreen.
“土地、劳动力和原材料成本在过去三年里都上涨了20%到30%，”广东恒兴公司董事长陈丹说。
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