stimulant
🇺🇸
/ˈstɪmjələnt/
🇬🇧
/ˈstɪmjələnt/
a substance that makes you more awake or energetic
Coffee is a common stimulant that helps people stay alert.
咖啡是一種常見的使人更清醒或精力充沛的物質,能幫助人們保持警覺。
something that encourages more action or activity
The new policy acted as a stimulant for economic growth.
新政策起到了鼓勵更多經濟活動的作用,促進了經濟增長。