C-2-fraction
[化] 碳二馏分
🧩 词语组成解析
🗣️ 情景例句
Five, five, five, seven, five, three, two.
5557532。
Who is the auther of this essay?
谁是这论文的作者？
A lot of things can change over twenty-one years.
21年了，许多东西都可能改变的。