Ucc
[计] 万国版权公约, 通用分类系统
🗣️ 情景例句
Oh, thank you.
哦，谢谢。
Until next weekend,if that's OK.
如果行的话，住到下个周末。
The spheres had been magnetized and attracted or repelled each other all the time.
金属球经过磁化，互相之间不停地相互吸引或相互排斥。