Saw the WTC memorial yesterday. It's beautiful, but be warned: when the wind gets up it's like standing near Niagara Falls. You get sprayed.
昨天我看到了世贸纪念馆,人造瀑布很美。但请警惕:无风不起浪;常在河边走,哪有不湿鞋?
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The batteries will enable a constant electrical output from sources such as wind or solar, which stop generating when the weather changes or night falls.