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
If you feel in any way unsatisfied, please just give me a call.
如果你觉得有任何不满意的地方，请给我电话。
Sweep before your own door.
先律己，后律人。
This time it was the postman and he wanted me to sign for a registered letter!
这次是邮递员，他要我签收一封挂号信！