密西西比三角洲的末端，被浅棕色的浑水环绕着，呈现亮茶色。
The tip of the Mississippi delta is surrounded by muddy water that appears light tan.
广场里人声嘈杂，有一处摆着三张长凳，相向而设，我幸运地在长凳的末端找到了一个位置。
The place was 6 buzzing. There were three benches gathered together facing each other and I was fortunate to find one spot at the end.
拍摄这个尘埃的设备称为原子力显微镜，通过用弹簧末端上的一个细尖扫描尘埃来绘制这个颗粒的三维形状。
The device that imaged the dust speck is called an atomic force microscope, which maps the shape of particles in three dimensions by scanning them with a sharp tip at the end of a spring.
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