这个国家的经济正在迅速发展。

Zhège guójiā de jīngjì zhèngzài xùnsù fāzhǎn.

This country’s economy is developing rapidly.

随着科技的迅速发展，人类的生活水平也逐步提高。

Suízhe kējì de xùnsù fāzhǎn, rénlèi de shēnghuó shuǐpíng yě zhúbù tígāo.

With the rapid development of technology, people’s standard of living has gradually improved as well.

我很欣赏这家公司对客人的迅速回应。

Wǒ hěn xīnshǎng zhè jiā gōngsī duì kèrén de xùnsù huíyìng.

I really appreciate this company’s quick response to customers.