Oxonite
苦味酸的硝酸溶液
🗣️ 情景例句
Exploring outer space is a challenge to mankind.
探索外层空间是一项向人类发出的挑战。
I can't take it.
真是受不了。
Half the world's telephone calls are made in English.
全球1/2的电话是用英语打的。