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
I know the feeling.
我知道这种感觉。
We must make it clear from the very beginning that competitive quotations are acceptable.
必须一开始就讲清的是，有竞争力的报价可以接受。
Members of the press weren't allowed into the meeting.
新闻记者不得进入会场。