the cutting edge
US /ðə ˈkʌtɪŋ ɛdʒ/
UK /ðə ˈkʌtɪŋ ɛdʒ/

1.
前沿, 尖端
the latest or most advanced stage in the development of something
:
•
Their new software is at the cutting edge of technology.
他们的新软件处于技术前沿。
•
The company is known for its research at the cutting edge of medical science.
该公司以其在医学科学前沿的研究而闻名。