生命线

tiě lù hé gōng lù shì jīng jì fán róng de shēng mìng xiàn

铁路和公路是经济繁荣的生命线。

Railways and highways are a lifeline to a prosperous economy.

jiào xué zhì liàng shì xué xiào jiào yù de shēng mìng xiàn

教学质量是学校教育的生命线。

Teaching quality is the lifeblood of the party school correspondence education.

jiāo tōng gàn xiàn shì jīng jì fán róng de shēng mìng xiàn

交通干线是经济繁荣的生命线。

The main communication arteries are a lifeline to prosperous economy.

mào yì shì dà duō shù xiàn dài guó jiā de shēng mìng xiàn

贸易是大多数现代国家的生命线。

Trade is the lifeblood of most modern states.