Patented
a. 专利的
✅ 同义词
🗣️ 情景例句
and giving up your free time.
放弃了你的闲暇时间。
Would you please take a message?
请你代我留话好吗？
Once a year, a race is held for old cars.
旧式汽车的比赛每年举行一次。