把这两个特征结合在轻而平衡的写字工具上，原子笔的墨水流畅的达到原子笔的尖端，是一种非常大的成就。
Bringing these together in a light, well balanced writing instrument, through which ink flows fluently to a ball point, is a great success.
他可以在米粒、板栗种子甚至还能在人的头发上写字，还发明了各种必要的微型工具去完成佳作。
He worked out how to write on rice grains, poppy seeds even human hair, and created the necessary micro-instruments to do this.
为了完成他的工作，罗布必须使用一把特殊的椅子。 他用头和脖子控制，用嘴衔着一个特殊的工具写字。
To do his job, Rob has to use a special chair. He controls with his head and neck, and write by using his mouth to hold a special tool.
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