Unite as one, Qi Xin work together, work together, be brave and tenacious: go forward bravely, sacrifice one's life for justice, be indomitable, be strong and unyielding, make great efforts, work hard and be far-sighted.

Brave and tenacious Pinyin: Gan Yong Wan Qiang

Explanation: Brave and outstanding, tenacious and unyielding. Metaphor does not yield in the face of pressure, showing great tenacity.

From: Source: Mao Zedong's On Protracted War: "It is to show the indomitable spirit and heroic and tenacious fighting capacity of the China army and the China people in front of them, which is a blow to the war of annihilation."

Example: 1: The Red Army completed the 25,000-mile Long March with its brave and tenacious spirit.

2. She passed the trough of her life with brave and tenacious spirit.