Martinal
氢氧化铝
🗣️ 情景例句
No doubt about it.
毫无疑问。
Could you explain how to fill this out?
请你说明一下怎样填这张表好吗？
He's only forty-one years old, and he has already been to nearly every country in the world.
他只有41岁，但他却过世界上几乎每一个国家。