毫厘: the least bit; an iota 短语和例子毫厘不差 without the slightest error; just right; 毫厘之差 an error by a hairbreath
毫厘千里: the difference of a little leads a thousand li astray - - a warning against carelessness; an error by a hair breadth may eventually result in an error of a thousand miles.; the least diver