Hydroxyazobenzene
羟基偶氮苯
🗣️ 情景例句
Yup. Forty-three years.
是的， 四十三年了。
A colt you may break,but an old horse you never can.
小驹犹可练，老马最难驯。
This company is our regular customer.
这家公司是我们的老客户。