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What is the stalk of calcium oxide?

The meaning of this stalk:

Calcium oxide, an online buzzword, became popular on the Internet because its chemical formula is CaO, which is homophonic with a coarse word, also called Cao for short.

The network language calcium oxide is an extremely euphemistic modal particle to express anger. The chemical formula of calcium oxide is CaO, which means it when read in pinyin (Cao).

The source of this stalk:

Calcium oxide has become a network term, which comes from a meaningful joke: the goddess sent me a sentence about calcium oxide deficiency, so I bought her a lot of supplements, and then it was gone. By the time I remembered what was going on, it was too late!

The usage of this stalk:

I just want to say calcium oxide with your fierce operation.