“我们正刚刚开始收集空气中的沙尘对健康影响的证据,”威廉斯·普里格(WilliamSprigg),亚利桑那大学的气候专家表示。
"We are just beginning to accumulate the evidence of airborne dust implications on health," said William Sprigg, a climate expert at Arizona University.
你会先造几样简单的东西,例如长凳或花架,”电脑专家罗宝·威廉斯说,“操作电脑也一样。
You'd start with something simple, like a bench or birdhouse, " says computer expert Robin Williams. "It's the same with the computer.
你会先造几样简单的东西,例如长凳或花架,”电脑专家罗宝·威廉斯说,“操作电脑也一样。
You'd start with something simple, like a bench or birdhouse, " says computer expert Robin Williams. "It's the same with the computer.
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