先声

nián de fǎ guó gé mìng shì shí jiǔ shì jì gè guó zī chǎn jiē jí gé mìng de xiān shēng

1789年的法国革命是十九世纪各国资产阶级革命的先声。

The French Revolution of 1789 heralded other bourgeois revolutions in the 19th century.

dù juān niǎo shì chūn tiān de xiān shēng

杜鹃鸟是春天的先声。

The cuckoo is the herald of spring.

zhí shù fáng zāi sī xiǎng shì jìn dài bǎo hù shēng tài huán jìng sī xiǎng de xiān shēng

植树防灾思想是近代保护生态环境思想的先声。

This idea was the first sign of the modern thought to protect zoological environments.