For centuries, the Silk Road was the most important line of communication connecting East and West.

几个世纪以来，丝绸之路是东西方交流的最重要的线路。

He says the powerful antibiotic Colistin has become an important last line of defense.

他说，强效抗生素粘菌素已成为重要的最后一道防线。

Mr. O'Brien stressed that Hodeida was an important life line for bringing food and medicine.

奥布赖恩先生强调，荷台达是运送食品和药品的重要生命线。

There is an important line of thought in Vernant and Vidal-Naquet that in tragedy human action is not strong enough to do without the power of the gods and not autonomous enough to be fully conceived without them.

Vernant 和 Vidal-Naquet 有一个重要的思路， 即在悲剧中， 如果没有神的力量， 人类的行为不够强大， 也不够自主， 没有它们就无法完全构思。