Electrophilic aromatic substitution
[化] 亲电芳香取代
🧩 词语组成解析
[机] 亲电性的
substitution
[ˌsʌbsti'tju:ʃən]
n. 代替;代用;替换;<化>取代（作用）;
🗣️ 情景例句
Hello, may I speak with…?
喂， 我可以和……说话吗？
You never know.
天晓得。
This is a kind of printing that blind people can read by touching groups of raised points that are printed on paper.
布莱叶盲文是一种印刷字体，盲人通过摸印在纸上起的点点来读书。