But the samples so far were all made with molecular construction techniques—that is, using a nanoscale molecular probe to stack the molecules one by one, like laying out bricks for a wall.

但目前为止的样品都是用分子构造技术制作的——也就是说， 用纳米级的分子探针将分子一个一个地堆叠起来， 就像砌砖砌墙一样。