Beckmann molecular transformation
[机] 贝克曼分子转换
🧩 词语组成解析
[机] 贝克曼
🗣️ 情景例句
A red sky at night indicates fine weather the following day.
晚上天边红预示着明早天气好。
It's been a long time.
好久不见了。
That sounds a great idea. Good luck with your trip!
听起来真是个好主意。祝你一路顺风。