Ybco
abbr. yttrium barium copper oxide 钇钡铜氧化物
🗣️ 情景例句
She's still giving the toughest English history exams
她仍用最艰深的英国史试题考学生
The efficiency is greatly raised,and the intensity of labor is decreased.
工作效率大大地提高了，而劳动强度却降低了。
No problem! Tell me, do I have to take them before or after meals?
“那不难！告诉我，我是在饭前还是饭后吃呢？”