Ybco
abbr. yttrium barium copper oxide 钇钡铜氧化物
🗣️ 情景例句
And remember,
记住，
How are you going?Are you going by boat?
你怎样去?坐船去吗？
I'm hungry. I haven't eaten anything since yesterday.
我很饿了，昨天到现在都没吃过东西。