Cement carbon
[建] 渗碳
🧩 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;
🗣️ 情景例句
Would a professional photographer be without a picture?
一位专业摄影师会没有照片吗？
You (or One) cannot make a silk purse out of a sow's ear.
粗瓷碗雕不出细花来。
Yes, that's right! Where did you see it?
对，没错！你在哪见过吗？