Boleite
[机] 铜铅矿
🗣️ 情景例句
This place is a pigsty.
这地方像个猪圈。
She seems fond of him.
她似乎喜欢他。
Why does aperson standing in a bus or train tend to fall when a sudden start is made?
一个人站在公共汽车或火车上，当车突然开动时，他为什么会倾倒呢？