lifeblood of a nation; national lifeline
Tone colorsmāmámǎmàma
Meanings
1 sense · 3 examplesnoun
lifeblood of a nation; national lifeline
formalA formal term referring to the most critical systems or resources essential for a country's survival and prosperity, such as transportation, energy, communication, or the economy.
Chuán传
yóu邮
wàn万
lǐ里
，
guó国
mài脉
suǒ所
xì系
。
Delivering mail over thousands of miles is connected to the lifeblood of the nation.
Néng能
yuán源
ān安
quán全
bèi被
shì视
wéi为
xiàn现
dài代
guó国
jiā家
de的
guó国
mài脉
。
Energy security is regarded as the lifeline of a modern nation.
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Bǎo保
hù护
xìn信
xī息
wǎng网
luò络
jiù就
shì是
bǎo保
hù护
shù数
zì字
shí时
dài代
de的
guó国
mài脉
。
Protecting the information network means protecting the national lifeline in the digital age.