刺激 cì​jī
stimulate verb
to encourage or provoke increased activity, development, or interest

This new policy aims to stimulate domestic consumption.

upset verb
to provoke a strong, often negative, emotional response or distress

The bad news was a great shock to him.

exciting verb
causing feelings of excitement, thrill, or heightened interest, often used to describe situations or experiences that are intense or adventurous.
irritate verb
to cause a physical or physiological reaction; an irritant or stimulus

Food that is too spicy can irritate the stomach.