Retrosystem
制动系统
🗣️ 情景例句
He married a classmate from high school.
他与高中时代的同班同学结婚。
The heart of the giver makes the gift dear and precious.
赠予者的心意可使馈赠的东西增加价值而显得珍贵。
Don't forget to keep in touch.
别忘了保持联系。