If it continues like this, he expects levels of pollution to double over the next 15 years.

如果继续这样下去，他预期污染水平将在接下来的15年内翻番。

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If Treasury yields return to June levels, the ETF could double in price.

如果国债收益率回到6月的水平，ETF的价格可能上升一倍。

youdao

The two brands with the highest levels -- more than double that of the other milk-based products -- command 87 percent of the market share for infant formula.

含量最高的两个牌子——其高氯酸盐含量是以牛奶为原料的同类产品的两倍多——占据了婴幼儿配方奶87%的市场份额。

youdao

in the children." The scientists reported that the risk of the disorder was almost double in children with high levels compared to those with no measurable level.

VOA: special.2010.05.26

Thai economists are warning Thailand's unemployment levels could reach 1.3 million people this year, more than double the530,000 people who lost their jobs last year when the unemployment rate stood at 1.4 percent.

VOA: standard.2009.03.09

The number of police-related deaths last year totaled 797, more than double levels from a decade earlier, according to figures from the Independent Police Investigative Directorate.

WSJ: South Africa Police Charged in Dragging Death

Many products tested by CEH contain more than double the levels found in the 2011 study.

FORBES: Target, Walmart, Babies-R-Us Sued Over Toxic Baby Products

The total number of tourists heading for Mediterranean coastlines is expected to rise to between 235 to 355 million per year by 2025 - roughly double 1990 levels.

BBC: NEWS | Science/Nature | Tourism damaging Med's wetlands