激发 (jīfā) is a verb meaning "to stimulate," "to inspire," or "to trigger." It is used when something sparks or motivates a new development or action. For example, 激发了更便宜的计算机的开发 means "stimulated the development of cheaper computers."
这本书激发了我学习编程的兴趣。
zhè běn shū jīfā le wǒ xuéxí biānchéng de xìngqù.
This book sparked my interest in learning programming.
老师的话激发了学生们的创造力。
lǎoshī de huà jīfā le xuéshēngmen de chuàngzàolì.
The teacher's words sparked the students' creativity.
新政策激发了市场的活力。
xīn zhèngcè jīfā le shìchǎng de huólì.
The new policy has stimulated the vitality of the market.