lifeblood

'laifblʌd

n. the blood considered as the seat of vitality
n. an essential or life-giving force

n. 鲜血, 血, 生机的根源

21,831

BNC 频率

19,303

使用频率

lifeblood由life（生命）和blood（血液）两个词组成，字面意思是“生命的血液”，引申为某事物的核心或必需元素。

例句

1. Water is the lifeblood of all living things.

水是所有生物的命脉。

2. Trust is the lifeblood of a healthy relationship.

信任是健康关系的命脉。

3. The internet has become the lifeblood of modern communication.

互联网已成为现代交流的命脉。