不过他们时而可以帮我点小忙，帮我递个工具，或用磁铁找到掉落下去的钉子。只是他们只能呆在地面上，捶打废木料。
They helped in small ways-handing me tools, picking up dropped nails with a magnetic sweeper-but they preferred to stay on the ground, hammering scrap wood into sailboats and slingshots.
这些磁铁可产生局部磁场，从相反的方向作用于芯片表面不同位点。
These magnets will generate local magnetic fields that point in opposite directions at different points on the chip's surface.
有时为了强调某一点，他微笑着慢慢抬起目光，于是她就像碰到磁铁一样，被他的眼神吸引住了。
He would raise his eyes slowly in smiling emphasis of something, and she was fixed by their magnetism.
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