| 释义 |
life·bloodBrE /ˈlaɪfblʌd/NAmE /ˈlaɪfblʌd/ noun [U] ~ (of sth) the thing that keeps sth strong and healthy and is necessary for successful development （事物的）命脉；生命线；命根子◆Tourism is the lifeblood of the city. 旅游业是这座城市的命脉。(literary) a person's blood, when it is thought of as the thing that is necessary for life （人的）命脉；生命必需的血液 |