Percolumbic acid
[化] 过铌酸
🧩 词语组成解析
🗣️ 情景例句
People shouldn't do drugs. They're too addictive.
人们不应吸毒，太容易上瘾了。
Quality matters more than quanity.
质量比数量重要。
You're from Australia, aren't you?
你是澳大利亚人，对吗？