Copper dioxide
[建] 过氧化铜
🧩 词语组成解析
copper
['kɑpɚ]
n. 铜;铜币;紫铜色;警察;
adj. 铜制的;
vt. 镀铜;
🗣️ 情景例句
I've thought about that for some time.
我已经想过一阵子了。
Life without a friend is death without a witness.
在世无朋友，死后无证人。
How many instruments do you play?
你能演奏多少种乐器？