Nitromagnesite
镁硝石
🗣️ 情景例句
Who do you work for?
你是做什么工作的？
Poverty tries friends.
贫穷考验朋友。
He has pointed out that the tree is a useful source of income as tour-ists have been coming from all parts of the country to see it.
他指出，由于人们从全国各地纷纷前来参观这棵树，