🧩 词语组成解析
n. 咖啡因；茶精（兴奋剂）
🗣️ 情景例句
Have you ever been there?
你去过那儿吗？
It would help if you could try to speak a little slower.
请你尽量放慢说话速度。
You're not busy doing anything, are you?'
你不忙，是吗？”