Cement copper
[化] 渗碳铜
🧩 词语组成解析
cement
[si'ment]
n. 水泥;胶合剂;胶接剂;粘固粉;
vt. 粘牢;巩固;（用水泥、胶等）粘结;在…上抹水泥;
copper
['kɑpɚ]
n. 铜;铜币;紫铜色;警察;
adj. 铜制的;
vt. 镀铜;
🗣️ 情景例句
Hi, I'm Mary.
嗨，你好，我叫玛丽。
Nothing so bad, as not to be good for something.
塞翁失马，安知非福。
I decided to take her by train.
我决定带她乘火车去。