在危机时刻，有人愿意挺身而出，甚至牺牲自己的生命。

Zài wēijī shíkè, yǒu rén yuànyì tǐngshēn'érchū, shènzhì xīshēng zìjǐ de shēngmìng.

In times of crisis, some people are willing to step forward and even sacrifice their own lives.

为了孩子的教育，他牺牲了很多个人时间。

Wèile háizi de jiàoyù, tā xīshēng le hěn duō gèrén shíjiān.

For the sake of his child's education, he sacrificed a lot of personal time.

他总是强调，成功不能以牺牲原则为代价。

Tā zǒngshì qiángdiào, chénggōng bùnéng yǐ xīshēng yuánzé wéi dàijià.

He always stresses that success must not come at the cost of sacrificing principles.