Separatography
无色化合物的吸附分离
🗣️ 情景例句
Now I want to ask you a few questions, if you don't mind.
如果不介意的话，现在我想问你几个问题。
Poverty on an old man's back is a heavy burden.
老而贫穷，负担沈重。
As Daniel Goldin of NASA observed, 'Finding life elsewhere would change everything.
正如美国国家航空和宇宙航空局的丹尼尔。戈尔丁指出的“在其他地方发现生命会改变一切。