Thein
n. 咖啡因, 茶堿
??? 情景例句
It's nice to see young love.... Oh, to be young again!
真高興看見年輕人相愛……。啊 能再恢復年輕多好
I suppose he was sick.
我猜他大概是病了。
Why don't you attend an aerobic class?
你為什么不去參加一個有氧健身班呢？