3 sentences

1. 时间线就是你的生命线。

   shí​jiān​xiàn jiù shì nǐ de shēng​mìng​xiàn.

   The timeline is your lifeline.

   Source: OpenSubtitles

2. 你的生命线很长。

   nǐ de shēng​mìng​xiàn hěn cháng.

   You have a long life line.

   Source: OpenSubtitles

3. 这条是生命线。

   zhè tiáo shì shēng​mìng​xiàn.

   This is the lifeline.

   Source: OpenSubtitles