Common carbon
[机] 普通碳
🧩 词语组成解析
common
['kɑmən]
adj. 普通的;通俗的;[数学]公共的;共有的;
n. [法律]（对土地、水域的）共有权;公共用地;普通;平民;
🗣️ 情景例句
At least we are not the only ones facing these problems.
至少不光是我们面临这样的问题。
Full details regarding packing and marking must be strictly observed.
请严格遵守包装及商标的细则。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，