know-how

她凭借多年的经验掌握了修理汽车的诀窍。

She has the ___know-how to fix cars from years of experience.

她凭借在烹饪方面的专业知识开了一家成功的餐厅。

She opened a successful restaurant thanks to her culinary ___know-how.

这家公司凭借其技术诀窍在市场上保持领先地位。

The company stays ahead in the market thanks to its technical ___know-how.