fast; high-speed; rapid

She gave my shoes a quick brush.

He quickly read through the abstracts to find the paper he was looking for.

The report from the National Development and Reform Committee says that the advance in rural high-speed telecommunication infrastructure is the main reason for the increase in Internet users.

You don't have to answer quickly.

I can describe China, especially in relation to big cities like Beijing, in one sentence - China is a country whose pace of life is both fast and leisurely.