原文：五四运动是在当时世界革命号召之下，是在俄国革命号召之下，是在列宁号召之下发生的。译文：The May 4th Movement began at the call of the world revolution，at the call of the Russian Revolution and at the call of Lenin.
The May 4th. Movement began at the call of the world revolution, of the Russian Revolution, and of Lenin. (考点:“号召” 一词在英译时的省略处理)
