我现在承担了一项严肃的任务，恐怕这个任务超出了任何人的能力范围。
The labor which it would require to make a single one of these guns by hand would exhaust the patience and perseverance of any ordinary workman.
手工制造一支这样的枪所需的劳动会耗尽任何普通工匠的耐心和毅力。
An invention can be so valuable as to be worthless to the inventor.
一项发明可能价值连城，但对发明者却毫无价值。
One of my primary objects is to form the tools so the tools themselves shall fashion the work and give to every part its just proportion.
我的主要目标之一是制造工具，让工具本身塑造工件，使每个部分都获得恰当比例。
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