Cobaltous oxide
[化] 氧化钴
🧩 词语组成解析
a. (正)钴的, 二价钴的\\n[建] (正)钴的, 二价钴的
oxide
['ɑksaɪd]
n. [化]氧化物;
🗣️ 情景例句
I waited for you for about a quarter of an hour.
我等了你差不多一刻钟。
First catch your hare, then cook him.
不要谋之过早。
Why was that?
为什么呢？