Pyramine
嘧胺, 2-甲-4-氨-5-羟甲基嘧啶
🗣️ 情景例句
How long does it take?
要花多久时间？
A dog will not howl if you beat him with a bone.
骨头打狗狗不叫。
He has tasted the sweets and bitters of life.
他已尝遍了人生的甜酸苦辣。