Cobalt oxide
[机] 氧化钴
🧩 词语组成解析
n. 钴, 钴类颜料\\n[化] 钴Co
oxide
['ɑksaɪd]
n. [化]氧化物;
🗣️ 情景例句
Well, I had a really nice time.
嗯 我玩得很开心。
Who is the auther of this short story?
谁是这短篇故事的作者？
Last week No.14 Middle School held a sports meeting on the playground.
上星期第十四中学在操场举行了一次运动会。