have something down to a science
对某事非常了解和熟练，已经达到了非常高的程度
口语·形容极其熟练
英文释义
to have something well-organized, planned, or mastered to a high degree of efficiency or accuracy
例句
She has her morning routine down to a science and is always on time.
典故来源
源自科学实验的精确性，比喻将某事掌握得像科学一样精准高效。