Diperchromic acid
[化] 过二铬酸
🧩 词语组成解析
🗣️ 情景例句
May I have headphones for the in-flight movie?
我可以要一副耳机来欣赏飞机上的电影吗？
David would get up early in the morning to deliver newspaper.
戴维一早起床就去送报纸。
Hans returned to his family home, but the house had been bombed and no one in the neighbourhood knew what had become of the inhabitants.
汉斯重返故里，但他的家已被炸毁，左邻右舍谁也不知原住户的下落，