As these clumps grew, their gravity increased, and eventually started drawing more material in.

随着这些团块不断增大，它们的引力也越来越大，随后开始吸引更多的物质进来。

The shape and form of the drawings activate one side of the brain, while the color and texture of the drawing material activates the other.

图片的形状和形态会开发一侧大脑，而涂料的颜色与质感则开发另一侧大脑。

It uses industrial and agricultural  by-products and waste to make the binder itself, so start with we're drawing  materials that are readily available.

它使用工业和农业副产品和废物来制造活页夹本身，因此我们从使用现成的材料开始。

But I was determined not to seem at a loss for occupation or amusement: I had brought my drawing materials with me, and they served me for both.

但我下定决心，不要显得对工作或娱乐感到茫然：我带了我的绘画材料，它们为我提供了这两样东西。

Margaret brought out her drawing materials for him to choose from; and after the paper and brushes had been duly selected, the two set out in the merriest spirits in the world.

玛格丽特拿出她的绘画材料，让他挑选。纸笔选好后，两人兴高采烈地出发了。

In forty years, indeed, an enormous steel area had grown up, including western Pennsylvania, Ohio, Indiana, and Illinois, practically all of it drawing its raw materials from those same teeming ore lands in the Lake Superior region.

四十年来，的确，一个巨大的钢铁区已经发展起来，包括西宾夕法尼亚州、俄亥俄州、印第安纳州和伊利诺伊州，几乎所有这些地区都从苏必利尔湖地区同样丰富的矿区提取原材料。