Subject + 加速
加速 (jiāsù) means "to accelerate" or "to speed up." It describes an increase in speed or pace, and can be used for physical movement, heartbeats, processes, or development.
汽车在高速公路上突然加速了。
Qìchē zài gāosù gōnglù shàng tūrán jiāsù le.
The car suddenly accelerated on the highway.
随着科技发展,城市建设的速度也在加速。
Suízhe kējì fāzhǎn, chéngshì jiànshè de sùdù yě zài jiāsù.
With the development of technology, the pace of urban construction is also accelerating.
跑到最后一圈的时候,他开始加速冲刺。
Pǎo dào zuìhòu yī quān de shíhou, tā kāishǐ jiāsù chōngcì.
When he reached the last lap, he started to sprint.