Ethionic acid
[化] 乙二磺酸
🧩 词语组成解析
🗣️ 情景例句
That's for sure.
那是当然。
Virtue is the only true nobility.
唯有美德是真正高贵的。
In 1929, three years after his flight over the North Pole, the American explorer, R.E.Byrd, successfully flew over the South Pole for the first time.
美国探险家 R。伯德在飞越北极3年之后，于1929年第一次飞越了南极。