A slight deviation at the beginning can lead to a huge error or deviation in the final outcome; a miss by a hair's breadth can lead to a miss by a thousand miles.
在进行任何精密工作时，我们都必须小心谨慎，因为任何一个小小的疏忽都可能导致“差之毫厘，失之千里”的严重后果。
When performing any precision work, we must be very careful, because any small oversight could lead to serious consequences, where 'a miss by a hair's breadth can lead to a miss by a thousand miles'.
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