S.g.iron
[机] 球状石墨铸铁
🗣️ 情景例句
It's hard to do anything but listen in this family.
在这个家庭 除了听别人之外还能怎样。
What do you think I should do?
你想我该怎么做呢？
His parents did not know what was wrong.
他的父母亲不知道他有什么毛病。