Hantzsch pyridine synthesis
[化] 汉奇吡啶合成
🧩 词语组成解析
pyridine
['pɪrɪˌdi:n]
n. 吡啶（治喘病用）;氮（杂）苯;
🗣️ 情景例句
You don't know what the surprise is yet?
你们还不知道这个惊喜是什么？
How often do you eat out?
你隔多久在外面吃一次饭？
The stereo is near the door.
音响靠近门。