Ybco
abbr. yttrium barium copper oxide 钇钡铜氧化物
🗣️ 情景例句
Do you have any animals now?
你现在还养着什么动物吗？
Here's no necessary.
我看没这必要。
She entered the station twenty minutes before the train was due,
在火车进站20分钟前她就进了车站。