舍生忘死 | shě shēng wàng sǐ

Xi Jinping used this chengyu in a letter written to young Party members of Peking University’s Aid E medical team sent on March 16, 2020.

Meaning

Bravery with no thought of personal safety; risking life and limb; undaunted by perils.

Original

“在新冠肺炎疫情防控斗争中，你们青年人同在一线英勇奋战的广大疫情防控人员一道，不畏艰险、冲锋在前、舍生忘死，彰显了青春的蓬勃力量，交出了合格答卷。”

Source

http://jhsjk.people.cn/article/31634860?isindex=1