stimulation

Young children need constant mental stimulation to help their brains develop properly.

(Chinese) 年幼的孩子需要不断的智力刺激来帮助他们的大脑正常发育。

The caffeine in coffee provides temporary physical stimulation that helps people stay awake.

(Chinese) 咖啡中的咖啡因提供暂时的身体刺激，帮助人们保持清醒。