life line

• 在困难情况下提供关键支持、帮助或作为生存手段的人或事物。也指维持生命所必需的事物或救生索。

A thing or person that provides essential support, help, or a means of survival in a difficult situation.

1. A vital connection or resourceB2formal

   Something that is essential for survival, safety, or continued existence.

   生命线

   • The supply of clean water is a lifeline for the village.
   • The emergency hotline serves as a lifeline for people in crisis.
   • For many small businesses, online sales are a lifeline.

2. A rope used for rescueB1formal

   A rope or line used to save someone from danger, especially in water or at heights.

   救生绳

   • The lifeguard threw a lifeline to the struggling swimmer.
   • Climbers always carry a lifeline for safety.
   • The rescue team used a lifeline to pull the hiker to safety.

3. A line on the palmB2informal

   In palmistry, the curved line on the palm that is believed to indicate the length and quality of life.

   生命线

   • The fortune teller examined her lifeline and predicted a long life.
   • His lifeline is very deep and clear, according to the palm reader.
   • She doesn't believe that the lifeline on her hand means anything.