Caffein
n. 咖啡因；茶精（兴奋剂）
✅ 同义词
🗣️ 情景例句
How long are you going to stay here?
您在这里呆多久？
A bad bush is better than the open field.
有胜于无。
We've had to increase our prices on this item by just 8%.
这一种我们不得已也只加了8%而已。