Copper oxide
[医] 氧化铜
🧩 词语组成解析
copper
['kɑpɚ]
n. 铜;铜币;紫铜色;警察;
adj. 铜制的;
vt. 镀铜;
oxide
['ɑksaɪd]
n. [化]氧化物;
🗣️ 情景例句
I have to sign copies of my book for a lot of people
我还必须为许多人在我的书上签名
I feel terrible about it.
太对不起了。
Some of them are very cheap.
其中有些商品挺便宜的。