Columbous
[建] 三价铌, 亚铌
🗣️ 情景例句
They're in my office.
在我办公室。
The timid child would not leave his mother's side.
那个胆小的孩子不愿离开母亲。
Miss Zhao is one of the most popular teachers in the school.
赵小姐是学校里最受欢迎的老师之一。