n.(事物的)命脉，生命线，命根子，生命必需的血液

The river is the lifeblood of the region, providing water for irrigation and transportation.
这条河是这个地区的生命线，为灌溉和运输提供水源。
Small businesses are the lifeblood of the local economy, creating jobs and driving growth.
小企业是当地经济的生命血液，创造了就业机会并推动了增长。
Tourism is the lifeblood of this island nation, attracting visitors from around the globe.
旅游业是这个岛国的生命线，吸引着来自世界各地的游客。
Innovation is the lifeblood of our company, fueling new product development and market expansion.
创新是我们公司的命脉，推动新产品开发和市场拓展。
For farmers, rain is the lifeblood that nourishes their crops and ensures a good harvest.
对农民来说，雨水是滋养作物、确保丰收的生命之源。
Volunteers are the lifeblood of the charity, dedicating their time and energy to help those in need.
志愿者是慈善机构的生命力，他们奉献时间和精力帮助需要的人。
In the digital age, data has become the lifeblood of businesses, informing strategic decisions and improving operations.
在数字时代，数据已成为企业的生命线，为战略决策提供信息并改善运营。
The arts are the lifeblood of cultural expression, reflecting society's values and inspiring creativity.
艺术是文化表达的生命血液，反映社会价值观，激发创造力。
For athletes, dedication and hard work are the lifeblood that leads to success and victory.
对于运动员来说，奉献和努力是通往成功和胜利的生命力量。
Education is the lifeblood of a thriving society, empowering individuals and fostering progress.
教育是繁荣社会的生命线，赋予个人力量，促进进步。