His determination to survive was unbreakable.

他求生的决心是不可动摇的。

同一单元的其他句子

• Facing adversity, she showed remarkable courage and determination.面对逆境，她表现出了非凡的勇气和决心。
• The climber's courage never wavered despite the harsh conditions.尽管条件艰苦，登山者的勇气从未动摇。
• How did you overcome the fear when you faced that challenge?当你面对那个挑战时，你是如何克服恐惧的？
• Do not let setbacks destroy your inner strength.不要让挫折摧毁你内心的力量。
• Their perseverance in the face of danger inspired everyone.他们在危险面前的坚持不懈激励了所有人。