🧩 词语组成解析
n. 凸版胶印
printing
['printiŋ]
n. 印刷（术）;（书籍的）一次印刷;印刷字体;一次的印数;
v. （在松软的表面）压印( print的现在分词 );把…付印;用印刷体写;冲洗（照片）;
🗣️ 情景例句
whom I think you've met once or twice before.
我想你以前见过他一两次面。
How long have you studied English?
你学英语多久了？
He made the first telephone.
他发明了第一部电话。